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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2019

or

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ___________ to ___________

Commission File Number: 1-6314

Tutor Perini Corporation

(Exact Name of Registrant as Specified in its Charter)

MASSACHUSETTS |  | 04-1717070
(State or Other Jurisdiction of Incorporation or Organization) |  | (I.R.S. Employer Identification No.)
15901 OLDEN STREET, SYLMAR, CALIFORNIA |  | 91342-1093
(Address of Principal Executive Offices) |  | (Zip Code)

(818) 362-8391

(Registrant’s Telephone Number, Including Area Code)

None

(Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common Stock, $1.00 par value | TPC | The New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☒ | Accelerated filer ☐
Non-accelerated filer ☐ | Smaller reporting company ☐
Emerging growth company ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The number of shares of common stock, $1.00 par value per share, of the registrant outstanding at August 1, 2019 was 50,278,816.

Table of Contents

TUTOR PERINI CORPORATION AND SUBSIDIARIES

TABLE O F CONTENTS

|  |  | Page Numbers
Part I. | Financial Information: |
| Item 1. | Financial Statements: |
|  | Condensed Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2019 and 2018 (Unaudited) | 3
|  | Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three and Six Months Ended June 30, 2019 and 2018 (Unaudited) | 4
|  | Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018 (Unaudited) | 5
|  | Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2019 and 2018 (Unaudited) | 6
|  | Notes to Condensed Consolidated Financial Statements (Unaudited) | 7 - 31
| Item 2. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 32 - 39
| Item 3. | Quantitative and Qualitative Disclosures About Market Risk | 39
| Item 4. | Controls and Procedures | 40
Part II. | Other Information: |
| Item 1. | Legal Proceedings | 40
| Item 1A. | Risk Factors | 40
| Item 4. | Mine Safety Disclosures | 40
| Item 5. | Other Information | 40
| Item 6. | Exhibits | 41
| Signature |  | 42

2

Table of Contents

PART I. – FINANCIAL INFORMATION

Item 1. – Financial Statements

TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

UNAUDITED

| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
(in thousands, except per common share amounts) | 2019 |  | 2018 |  | 2019 |  | 2018
REVENUE | $ | 1,125,275 |  | $ | 1,120,085 |  | $ | 2,083,762 |  | $ | 2,148,241
COST OF OPERATIONS |  | (1,024,332) |  |  | (1,001,445) |  |  | (1,894,349) |  |  | (1,962,533)
GROSS PROFIT |  | 100,943 |  |  | 118,640 |  |  | 189,413 |  |  | 185,708
General and administrative expenses |  | (62,797) |  |  | (63,825) |  |  | (128,354) |  |  | (131,818)
Goodwill impairment |  | (379,863) |  |  | — |  |  | (379,863) |  |  | —
INCOME (LOSS) FROM CONSTRUCTION OPERATIONS |  | (341,717) |  |  | 54,815 |  |  | (318,804) |  |  | 53,890
Other income, net |  | 900 |  |  | 1,050 |  |  | 1,322 |  |  | 1,830
Interest expense |  | (17,522) |  |  | (15,998) |  |  | (33,947) |  |  | (31,063)
INCOME (LOSS) BEFORE INCOME TAXES |  | (358,339) |  |  | 39,867 |  |  | (351,429) |  |  | 24,657
Income tax benefit (expense) |  | 42,900 |  |  | (11,971) |  |  | 40,712 |  |  | (7,703)
NET INCOME (LOSS) |  | (315,439) |  |  | 27,896 |  |  | (310,717) |  |  | 16,954
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS |  | 5,091 |  |  | 3,013 |  |  | 10,169 |  |  | 4,195
NET INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION | $ | (320,530) |  | $ | 24,883 |  | $ | (320,886) |  | $ | 12,759
BASIC EARNINGS (LOSS) PER COMMON SHARE | $ | (6.38) |  | $ | 0.50 |  | $ | (6.40) |  | $ | 0.26
DILUTED EARNINGS (LOSS) PER COMMON SHARE | $ | (6.38) |  | $ | 0.49 |  | $ | (6.40) |  | $ | 0.25
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING: |  |  |  |  |  |  |  |  |  |  |
BASIC |  | 50,224 |  |  | 49,946 |  |  | 50,161 |  |  | 49,880
DILUTED |  | 50,224 |  |  | 50,440 |  |  | 50,161 |  |  | 50,127

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

3

Table of Contents

TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

UNAUDITED

| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
NET INCOME (LOSS) | $ | (315,439) |  | $ | 27,896 |  | $ | (310,717) |  | $ | 16,954
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX: |  |  |  |  |  |  |  |  |  |  |
Defined benefit pension plan adjustments |  | 331 |  |  | 354 |  |  | 661 |  |  | 735
Foreign currency translation adjustments |  | 810 |  |  | (634) |  |  | 1,158 |  |  | (1,808)
Unrealized gain (loss) in fair value of investments |  | 686 |  |  | (929) |  |  | 1,359 |  |  | (1,014)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX |  | 1,827 |  |  | (1,209) |  |  | 3,178 |  |  | (2,087)
COMPREHENSIVE INCOME (LOSS) |  | (313,612) |  |  | 26,687 |  |  | (307,539) |  |  | 14,867
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS |  | 5,248 |  |  | 3,013 |  |  | 10,428 |  |  | 4,195
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION | $ | (318,860) |  | $ | 23,674 |  | $ | (317,967) |  | $ | 10,672

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

4

Table of Contents

TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

UNAUDITED

| As of June 30, |  | As of December 31,
(in thousands, except share and per share amounts) | 2019 |  | 2018
ASSETS
CURRENT ASSETS: |  |  |  |  |
Cash and cash equivalents ($60,562 and $43,131 related to variable interest entities ("VIEs")) | $ | 149,881 |  | $ | 116,075
Restricted cash |  | 4,742 |  |  | 3,788
Restricted investments |  | 65,287 |  |  | 58,142
Accounts receivable ($94,807 and $62,482 related to VIEs) |  | 1,469,213 |  |  | 1,261,072
Retainage receivable ($56,012 and $36,724 related to VIEs) |  | 508,423 |  |  | 478,744
Costs and estimated earnings in excess of billings |  | 1,165,408 |  |  | 1,142,295
Other current assets ($35,051 and $30,185 related to VIEs) |  | 165,688 |  |  | 115,527
Total current assets |  | 3,528,642 |  |  | 3,175,643
PROPERTY AND EQUIPMENT ("P&E"), net of accumulated depreciation of $362,350 and $343,735 (net P&E of $53,818 and $51,508 related to VIEs) |  | 502,675 |  |  | 490,669
GOODWILL |  | 205,143 |  |  | 585,006
INTANGIBLE ASSETS, NET |  | 84,140 |  |  | 85,911
OTHER ASSETS |  | 92,896 |  |  | 50,523
TOTAL ASSETS | $ | 4,413,496 |  | $ | 4,387,752
LIABILITIES AND EQUITY
CURRENT LIABILITIES: |  |  |  |  |
Current maturities of long-term debt | $ | 14,414 |  | $ | 16,767
Accounts payable ($36,524 and $18,070 related to VIEs) |  | 685,745 |  |  | 621,728
Retainage payable |  | 227,884 |  |  | 211,956
Billings in excess of costs and estimated earnings ($282,130 and $263,764 related to VIEs) |  | 635,924 |  |  | 573,190
Accrued expenses and other current liabilities ($42,109 and $34,828 related to VIEs) |  | 175,525 |  |  | 174,325
Total current liabilities |  | 1,739,492 |  |  | 1,597,966
LONG-TERM DEBT, less current maturities, net of unamortized discounts and debt issuance costs totaling $29,305 and $34,998 |  | 941,763 |  |  | 744,737
DEFERRED INCOME TAXES |  | 56,248 |  |  | 105,521
OTHER LONG-TERM LIABILITIES |  | 186,434 |  |  | 151,639
TOTAL LIABILITIES |  | 2,923,937 |  |  | 2,599,863
COMMITMENTS AND CONTINGENCIES (NOTE 11) |  |  |  |  |
EQUITY |  |  |  |  |
Stockholders' equity: |  |  |  |  |
Preferred stock - authorized 1,000,000 shares ($1 par value), none issued |  | — |  |  | —
Common stock - authorized 75,000,000 shares ($1 par value), issued and outstanding 50,278,816 and 50,025,996 shares |  | 50,279 |  |  | 50,026
Additional paid-in capital |  | 1,110,496 |  |  | 1,102,919
Retained earnings |  | 380,795 |  |  | 701,681
Accumulated other comprehensive loss |  | (42,530) |  |  | (45,449)
Total stockholders' equity |  | 1,499,040 |  |  | 1,809,177
Noncontrolling interests |  | (9,481) |  |  | (21,288)
TOTAL EQUITY |  | 1,489,559 |  |  | 1,787,889
TOTAL LIABILITIES AND EQUITY | $ | 4,413,496 |  | $ | 4,387,752

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

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TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

UNAUDITED

| Six Months Ended June 30,
(in thousands) | 2019 |  | 2018
Cash Flows from Operating Activities: |  |  |  |  |
Net income (loss) | $ | (310,717) |  | $ | 16,954
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |  |  |  |
Goodwill impairment |  | 379,863 |  |  | —
Depreciation |  | 26,543 |  |  | 19,393
Amortization of intangible assets |  | 1,771 |  |  | 1,771
Share-based compensation expense |  | 10,078 |  |  | 12,063
Change in debt discounts and deferred debt issuance costs |  | 6,442 |  |  | 5,914
Deferred income taxes |  | (50,321) |  |  | 116
(Gain) loss on sale of property and equipment |  | (1,479) |  |  | 1,474
Changes in other components of working capital |  | (177,471) |  |  | (113,887)
Other long-term liabilities |  | 3,209 |  |  | (5,276)
Other, net |  | 596 |  |  | (902)
NET CASH USED IN OPERATING ACTIVITIES |  | (111,486) |  |  | (62,380)
Cash Flows from Investing Activities: |  |  |  |  |
Acquisition of property and equipment |  | (39,346) |  |  | (48,303)
Proceeds from sale of property and equipment |  | 3,629 |  |  | 4,120
Investment in securities |  | (13,660) |  |  | (8,549)
Proceeds from maturities and sales of investments in securities |  | 8,131 |  |  | 7,982
NET CASH USED IN INVESTING ACTIVITIES |  | (41,246) |  |  | (44,750)
Cash Flows from Financing Activities: |  |  |  |  |
Proceeds from debt |  | 716,139 |  |  | 1,246,677
Repayment of debt |  | (527,159) |  |  | (1,165,283)
Business acquisition related payment |  | — |  |  | (15,951)
Cash payments related to share-based compensation |  | (2,363) |  |  | (2,458)
Distributions paid to noncontrolling interests |  | (4,000) |  |  | (12,500)
Contributions from noncontrolling interests |  | 5,379 |  |  | 1,000
Debt modification costs |  | (504) |  |  | —
NET CASH PROVIDED BY FINANCING ACTIVITIES |  | 187,492 |  |  | 51,485
Net increase (decrease) in cash, cash equivalents and restricted cash |  | 34,760 |  |  | (55,645)
Cash, cash equivalents and restricted cash at beginning of period |  | 119,863 |  |  | 197,648
Cash, cash equivalents and restricted cash at end of period | $ | 154,623 |  | $ | 142,003

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

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TUTOR PERINI CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

UNAUDITED

(1) Basis of Presentation

The Condensed Consolidated Financial Statements do not include footnotes and certain financial information normally presented annually under generally accepted accounting principles in the United States (“GAAP”). Therefore, they should be read in conjunction with the audited consolidated financial statements and the related notes included in Tutor Perini Corporation’s (the “Company”) Annual Report on Form 10-K for the year ended December 31, 2018. The results of operations for the three and six months ended June 30, 2019 may not be indicative of the results that will be achieved for the full year ending December 31, 2019.

In the opinion of management, the accompanying unaudited Condensed Consolidated Financial Statements reflect all adjustments, including those of a normal recurring nature, necessary to present fairly the Company’s consolidated financial position as of June 30, 2019 and its consolidated statements of operations and cash flows for the interim periods presented. Intercompany balances and transactions have been eliminated.

(2) Recent Accounting Pronouncements

New accounting pronouncements adopted by the Company during the six months ended June 30, 2019 are discussed below.

In August 2018, the Securities and Exchange Commission (“SEC”) adopted the final rule under SEC Release No. 33-10532, “Disclosure Update and Simplification,” adopting amendments to certain disclosure rules that were redundant, duplicative, overlapping, outdated, or superseded, in light of other SEC disclosure requirements, GAAP or changes in the information environment. The amendments expanded the disclosure requirements relating to the analysis of equity for interim financial statements. Under the amendments, an analysis of the changes in each caption of stockholders’ equity and noncontrolling interests presented in the balance sheet must be provided in a note or separate statement. The analysis must present a reconciliation of the beginning balance to the ending balance of each period for which a statement of earnings is required to be filed. The final rule was effective on November 5, 2018. The Company adopted the final rule effective for the first quarter of 2019. The adoption of the final rule did not have an impact on the Company’s consolidated financial position or results of operations. See Note 16, Changes in Equity, for the new required disclosures.

In February 2016, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842), as amended and supplemented by subsequent ASUs (collectively, “ASC 842”). ASC 842 amends the existing guidance in Accounting Standards Codification (“ASC”) 840, Leases. This ASU requires, among other things, the recognition of lease right-of-use (“ROU”) assets and lease liabilities by lessees for those leases currently classified as operating leases. ASC 842 allowed companies to adopt the new standard by applying either a modified retrospective method to the beginning of the earliest period presented in the financial statements or an optional transition method to initially apply the standard on January 1, 2019 and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company adopted the standard using the optional transition method. Under this method, financial results reported in periods prior to 2019 are unchanged. The Company elected the package of practical expedients which provides relief from having to reassess (1) whether any expired or existing contracts contain leases, (2) lease classification (as operating or financing) for any expired or existing leases, and (3) initial direct costs for any existing leases. The Company also elected to separate non-lease components from lease components. Based on the Company’s evaluation of ASC 842, the adoption on January 1, 2019 resulted in an increase of $43.3 million to its assets and liabilities on the Condensed Consolidated Balance Sheets with no impact to its results of operations or cash flows.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

The effects of the changes made to the Company’s January 1, 2019 consolidated balance sheet for the adoption of ASC 842 were as follows:

BALANCE SHEET | Balance as of |  | Adjustments due to |  | Balance as of
(in thousands) | December 31, 2018(a) |  | ASC 842 |  | January 1, 2019
ASSETS |  |  |  |  |  |  |  |
Other assets(b) | $ | 50,523 |  | $ | 43,273 |  | $ | 93,796
LIABILITIES |  |  |  |  |  |  |  |
Accrued expenses and other current liabilities(b) | $ | 174,325 |  | $ | 11,569 |  | $ | 185,894
Other long-term liabilities(b) |  | 151,639 |  |  | 31,704 |  |  | 183,343

(a)Balance as previously reported on the Company’s Annual Report on Form 10-K for the year ended December 31, 2018.

(b)Prior to the adoption of ASC 842, operating lease ROU assets and current and long-term operating lease liabilities were not recorded on the Condensed Consolidated Balance Sheets.

The following table presents the impacts of adoption of the new leases standard on the Condensed Consolidated Balance Sheet:

|  | As of June 30, 2019
|  |  |  | Balance Without |  |
BALANCE SHEET |  |  |  | Adoption of |  | Effect of
(in thousands) |  | As Reported |  | ASC 842 |  | Change
ASSETS |  |  |  |  |  |  |  |  |
Other assets(a) |  | $ | 92,896 |  | $ | 50,001 |  | $ | 42,895
LIABILITIES |  |  |  |  |  |  |  |  |
Accrued expenses and other current liabilities(a) |  | $ | 175,525 |  | $ | 163,718 |  | $ | 11,807
Other long-term liabilities(a) |  |  | 186,434 |  |  | 155,346 |  |  | 31,088

(a)Prior to the adoption of ASC 842, operating lease ROU assets and current and long-term operating lease liabilities were not recorded on the Condensed Consolidated Balance Sheets.

For the three and six months ended June 30, 2019, the new requirements of ASC 842 did not have an impact on the Company’s results of operations or cash flows.

(3) Revenue

Disaggregation of Revenue

The following tables disaggregate revenue by end market, customer type and contract type, which the Company believes best depict how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors for the three and six months ended June 30, 2019 and 2018.

|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in thousands) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Civil segment revenue by end market: |  |  |  |  |  |  |  |  |  |  |  |
Mass transit |  | $ | 243,620 |  | $ | 158,096 |  | $ | 389,870 |  | $ | 308,222
Bridges |  |  | 86,467 |  |  | 120,929 |  |  | 155,774 |  |  | 183,739
Highways |  |  | 60,244 |  |  | 65,809 |  |  | 101,287 |  |  | 83,066
Tunneling |  |  | 29,586 |  |  | 23,931 |  |  | 64,526 |  |  | 32,632
Other |  |  | 53,741 |  |  | 33,708 |  |  | 95,695 |  |  | 57,928
Total Civil segment revenue |  | $ | 473,658 |  | $ | 402,473 |  | $ | 807,152 |  | $ | 665,587

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in thousands) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Building segment revenue by end market: |  |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial facilities |  | $ | 118,564 |  | $ | 59,318 |  | $ | 227,917 |  | $ | 233,066
Health care facilities |  |  | 60,796 |  |  | 118,116 |  |  | 141,023 |  |  | 193,197
Municipal and government |  |  | 68,580 |  |  | 70,528 |  |  | 130,542 |  |  | 120,981
Education facilities |  |  | 47,062 |  |  | 32,876 |  |  | 89,590 |  |  | 65,358
Hospitality and gaming |  |  | 35,939 |  |  | 79,490 |  |  | 83,896 |  |  | 161,255
Mass transit |  |  | 41,211 |  |  | 13,171 |  |  | 70,388 |  |  | 13,171
Mixed use |  |  | 23,582 |  |  | 38,814 |  |  | 60,209 |  |  | 80,590
Other |  |  | 32,584 |  |  | 34,666 |  |  | 58,219 |  |  | 69,602
Total Building segment revenue |  | $ | 428,318 |  | $ | 446,979 |  | $ | 861,784 |  | $ | 937,220

|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(in thousands) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Specialty Contractors segment revenue by end market: |  |  |  |  |  |  |  |  |  |  |  |
Mass transit |  | $ | 100,016 |  | $ | 78,169 |  | $ | 181,411 |  | $ | 153,351
Commercial and industrial facilities |  |  | 43,618 |  |  | 48,952 |  |  | 87,641 |  |  | 88,291
Multi-unit residential |  |  | 19,225 |  |  | 22,761 |  |  | 30,614 |  |  | 45,850
Mixed use |  |  | 18,036 |  |  | 51,976 |  |  | 28,705 |  |  | 99,833
Education facilities |  |  | 14,036 |  |  | 26,298 |  |  | 25,616 |  |  | 51,602
Health care facilities |  |  | 9,248 |  |  | 14,623 |  |  | 20,899 |  |  | 30,988
Transportation |  |  | 3,726 |  |  | 22,019 |  |  | 10,161 |  |  | 56,004
Other |  |  | 15,394 |  |  | 5,835 |  |  | 29,779 |  |  | 19,515
Total Specialty Contractors segment revenue |  | $ | 223,299 |  | $ | 270,633 |  | $ | 414,826 |  | $ | 545,434

|  | Three Months Ended June 30, 2019 |  | Three Months Ended June 30, 2018
|  |  |  |  |  |  |  | Specialty |  |  |  |  |  |  |  |  |  |  | Specialty |  |  |
(in thousands) |  | Civil |  | Building |  | Contractors |  | Total |  | Civil |  | Building |  | Contractors |  | Total
Revenue by customer type: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and local agencies |  | $ | 381,438 |  | $ | 133,798 |  | $ | 114,255 |  | $ | 629,491 |  | $ | 327,195 |  | $ | 159,556 |  | $ | 106,308 |  | $ | 593,059
Private owners |  |  | 65,241 |  |  | 250,124 |  |  | 106,283 |  |  | 421,648 |  |  | 44,506 |  |  | 235,160 |  |  | 149,337 |  |  | 429,003
Federal agencies |  |  | 26,979 |  |  | 44,396 |  |  | 2,761 |  |  | 74,136 |  |  | 30,772 |  |  | 52,263 |  |  | 14,988 |  |  | 98,023
Total revenue |  | $ | 473,658 |  | $ | 428,318 |  | $ | 223,299 |  | $ | 1,125,275 |  | $ | 402,473 |  | $ | 446,979 |  | $ | 270,633 |  | $ | 1,120,085

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

|  | Six Months Ended June 30, 2019 |  | Six Months Ended June 30, 2018
|  |  |  |  |  |  |  | Specialty |  |  |  |  |  |  |  |  |  |  | Specialty |  |  |
(in thousands) |  | Civil |  | Building |  | Contractors |  | Total |  | Civil |  | Building |  | Contractors |  | Total
Revenue by customer type: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and local agencies |  | $ | 638,545 |  | $ | 278,484 |  | $ | 211,326 |  | $ | 1,128,355 |  | $ | 553,546 |  | $ | 275,541 |  | $ | 212,628 |  | $ | 1,041,715
Private owners |  |  | 118,470 |  |  | 498,753 |  |  | 192,970 |  |  | 810,193 |  |  | 71,414 |  |  | 565,105 |  |  | 299,094 |  |  | 935,613
Federal agencies |  |  | 50,137 |  |  | 84,547 |  |  | 10,530 |  |  | 145,214 |  |  | 40,627 |  |  | 96,574 |  |  | 33,712 |  |  | 170,913
Total revenue |  | $ | 807,152 |  | $ | 861,784 |  | $ | 414,826 |  | $ | 2,083,762 |  | $ | 665,587 |  | $ | 937,220 |  | $ | 545,434 |  | $ | 2,148,241

|  | Three Months Ended June 30, 2019 |  | Three Months Ended June 30, 2018
|  |  |  |  |  |  |  | Specialty |  |  |  |  |  |  |  |  |  |  | Specialty |  |  |
(in thousands) |  | Civil |  | Building |  | Contractors |  | Total |  | Civil |  | Building |  | Contractors |  | Total
Revenue by contract type: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed price |  | $ | 349,945 |  | $ | 136,250 |  | $ | 187,826 |  | $ | 674,021 |  | $ | 259,927 |  | $ | 96,657 |  | $ | 234,495 |  | $ | 591,079
Guaranteed maximum price |  |  | 1,644 |  |  | 185,050 |  |  | 7,315 |  |  | 194,009 |  |  | 3,103 |  |  | 270,440 |  |  | 17,462 |  |  | 291,005
Unit price |  |  | 116,285 |  |  | 2,800 |  |  | 20,183 |  |  | 139,268 |  |  | 121,447 |  |  | 10,771 |  |  | 7,233 |  |  | 139,451
Cost plus fee and other |  |  | 5,784 |  |  | 104,218 |  |  | 7,975 |  |  | 117,977 |  |  | 17,996 |  |  | 69,111 |  |  | 11,443 |  |  | 98,550
Total revenue |  | $ | 473,658 |  | $ | 428,318 |  | $ | 223,299 |  | $ | 1,125,275 |  | $ | 402,473 |  | $ | 446,979 |  | $ | 270,633 |  | $ | 1,120,085

|  | Six Months Ended June 30, 2019 |  | Six Months Ended June 30, 2018
|  |  |  |  |  |  |  | Specialty |  |  |  |  |  |  |  |  |  |  | Specialty |  |  |
(in thousands) |  | Civil |  | Building |  | Contractors |  | Total |  | Civil |  | Building |  | Contractors |  | Total
Revenue by contract type: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed price |  | $ | 592,811 |  | $ | 250,609 |  | $ | 343,090 |  | $ | 1,186,510 |  | $ | 443,830 |  | $ | 175,658 |  | $ | 481,919 |  | $ | 1,101,407
Guaranteed maximum price |  |  | 3,878 |  |  | 392,182 |  |  | 10,921 |  |  | 406,981 |  |  | 8,175 |  |  | 532,468 |  |  | 33,042 |  |  | 573,685
Unit price |  |  | 201,163 |  |  | 8,028 |  |  | 39,186 |  |  | 248,377 |  |  | 190,201 |  |  | 19,588 |  |  | 13,890 |  |  | 223,679
Cost plus fee and other |  |  | 9,300 |  |  | 210,965 |  |  | 21,629 |  |  | 241,894 |  |  | 23,381 |  |  | 209,506 |  |  | 16,583 |  |  | 249,470
Total revenue |  | $ | 807,152 |  | $ | 861,784 |  | $ | 414,826 |  | $ | 2,083,762 |  | $ | 665,587 |  | $ | 937,220 |  | $ | 545,434 |  | $ | 2,148,241

Changes in Contract Estimates that Impact Revenue

Changes to the total estimated contract revenue or cost for a given project, either due to unexpected events or revisions to management’s initial estimates, are recognized in the period in which they are determined. Net revenue was negatively impacted during the three- and six-month periods ended June 30, 2019 related to performance obligations satisfied (or partially satisfied) in prior periods by $14.6 million and $27.7 million, respectively. Net revenue recognized during the three and six months ended June 30, 2018 related to performance obligations satisfied (or partially satisfied) in prior periods was immaterial.

Remaining Performance Obligations

Remaining performance obligations represent the transaction price of firm orders for which work has not been performed and exclude unexercised contract options. As of June 30, 2019, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $5.5 billion, $1.7 billion and $2.2 billion for the Civil, Building and Specialty Contractors segments, respectively. As of June 30, 2018, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $4.3 billion, $2.0 billion and $1.6 billion for the Civil, Building and Specialty Contractors segments, respectively. The Company typically recognizes revenue on Civil segment projects over a period of three to five years, whereas for projects in the Building and Specialty Contractors segments, the Company typically recognizes revenue over a period of one to three years.

(4) Contract Assets and Liabilities

The Company classifies contract assets and liabilities that may be settled beyond one year from the balance sheet date as current, consistent with the length of time of the Company’s project operating cycle.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

Contract assets include amounts due under retainage provisions, costs and estimated earnings in excess of billings and capitalized contract costs. The amounts as included on the Condensed Consolidated Balance Sheets consisted of the following:

|  | As of June 30, |  | As of December 31,
(in thousands) |  | 2019 |  | 2018
Retainage receivable |  | $ | 508,423 |  | $ | 478,744
Costs and estimated earnings in excess of billings: |  |  |  |  |  |
Claims |  |  | 752,712 |  |  | 698,274
Unapproved change orders |  |  | 334,774 |  |  | 354,000
Other unbilled costs and profits |  |  | 77,922 |  |  | 90,021
Total costs and estimated earnings in excess of billings |  |  | 1,165,408 |  |  | 1,142,295
Capitalized contract costs |  |  | 61,376 |  |  | 37,404
Total contract assets |  | $ | 1,735,207 |  | $ | 1,658,443

Retainage receivable represents amounts invoiced to customers where payments have been partially withheld pending the completion of certain milestones, satisfaction of other contractual conditions or the completion of the project. Retainage agreements vary from project to project and balances could be outstanding for several months or years depending on a number of circumstances such as contract-specific terms, project performance and other variables that may arise as the Company makes progress towards completion.

Costs and estimated earnings in excess of billings represent the excess of contract costs and profits (or contract revenue) over the amount of contract billings to date and are classified as a current asset. Costs and estimated earnings in excess of billings result when either: 1) the appropriate contract revenue amount has been recognized over time in accordance with ASC 606, Revenue from Contracts with Customers (“ASC 606”), but a portion of the revenue recorded cannot be billed currently due to the billing terms defined in the contract, or 2) costs are incurred related to certain claims and unapproved change orders. Claims occur when there is a dispute regarding both a change in the scope of work and the price associated with that change. Unapproved change orders occur when a change in the scope of work results in additional work being performed before the parties have agreed on the corresponding change in the contract price. The Company routinely estimates recovery related to claims and unapproved change orders as a form of variable consideration at the most likely amount it expects to receive and to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Claims and unapproved change orders are billable upon the agreement and resolution between the contractual parties and after the execution of contractual amendments. Increases in claims and unapproved change orders typically result from costs being incurred against existing or new positions; decreases normally result from resolutions and subsequent billings. As discussed in Note 11, Commitments and Contingencies, the resolution of these claims and unapproved change orders may require litigation or other forms of dispute resolution proceedings. Other unbilled costs and profits are billable in accordance with the billing terms of each of the existing contractual arrangements and, as such, the timing of contract billing cycles can cause fluctuations in the balance of unbilled costs and profits. Ultimate resolution of other unbilled costs and profits typically involves incremental progress toward contractual requirements or milestones.

Capitalized contract costs primarily represent costs to fulfill a contract that (1) directly relate to an existing or anticipated contract, (2) generate or enhance resources that will be used in satisfying performance obligations in the future and (3) are expected to be recovered through the contract, and are included in other current assets. Capitalized contract costs are generally expensed to the associated contract over the period of anticipated use on the project. During the three and six months ended June 30, 2019, $8.6 million and $14.3 million, respectively, of previously capitalized contract costs were amortized and recognized as expense on the related contracts. During the three and six months ended June 30, 2018, $4.1 million and $8.2 million, respectively, of previously capitalized contract costs were amortized and recognized as expense on the related contracts.

Contract liabilities include amounts owed under retainage provisions and billings in excess of costs and estimated earnings. The amount as reported on the Condensed Consolidated Balance Sheets consisted of the following:

|  | As of June 30, |  | As of December 31,
(in thousands) |  | 2019 |  | 2018
Retainage payable |  | $ | 227,884 |  | $ | 211,956
Billings in excess of costs and estimated earnings |  |  | 635,924 |  |  | 573,190
Total contract liabilities |  | $ | 863,808 |  | $ | 785,146

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Retainage payable represents amounts invoiced to the Company by subcontractors where payments have been partially withheld pending the completion of certain milestones, other contractual conditions or upon the completion of the project. Generally, retainage payable is not remitted to subcontractors until the associated retainage receivable from customers is collected.

Billings in excess of costs and estimated earnings represent the excess of contract billings to date over the amount of contract costs and profits (or contract revenue) recognized to date. The balance may fluctuate depending on the timing of contract billings and the recognition of contract revenue. Revenue recognized during the three and six months ended June 30, 2019 and included in the opening billings in excess of costs and estimated earnings balances for each period totaled $289.4 million and $391.9 million, respectively. Revenue recognized during the three and six months ended June 30, 2018 and included in the opening billings in excess of costs and estimated earnings balances for each period totaled $262.3 million and $303.4 million, respectively.

(5) Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets to the amounts shown in the Condensed Consolidated Statements of Cash Flows:

|  | As of June 30, |  | As of December 31,
(in thousands) |  | 2019 |  | 2018
Cash and cash equivalents available for general corporate purposes |  | $ | 64,668 |  | $ | 51,749
Joint venture cash and cash equivalents |  |  | 85,213 |  |  | 64,326
Cash and cash equivalents |  |  | 149,881 |  |  | 116,075
Restricted cash |  |  | 4,742 |  |  | 3,788
Total cash, cash equivalents and restricted cash |  | $ | 154,623 |  | $ | 119,863

Cash equivalents include short-term, highly liquid investments with maturities of three months or less when acquired. Cash and cash equivalents consist of amounts available for the Company’s general purposes, the Company’s proportionate share of cash held by the Company’s unconsolidated joint ventures and 100% of amounts held by the Company’s consolidated joint ventures. In both cases, cash held by joint ventures is available only for joint venture-related uses, including future distributions to joint venture partners.

Amounts included in restricted cash are primarily held as collateral to secure insurance-related contingent obligations, such as insurance claim deductibles, in lieu of letters of credit.

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(6) Earnings Per Common Share (EPS)

Basic EPS and diluted EPS are calculated by dividing net income attributable to Tutor Perini Corporation by the following: for basic EPS, the weighted-average number of common shares outstanding during the period; and for diluted EPS, the sum of the weighted-average number of both outstanding common shares and potentially dilutive securities, which for the Company can include restricted stock units, unexercised stock options and the Convertible Notes, as defined in Note 9, Financial Commitments. In accordance with ASC 260, Earnings Per Share (“ASC 260”), the settlement of the principal amount of the Convertible Notes has no impact on diluted EPS because the Company has the intent and ability to settle the principal amount in cash. The Company calculates the effect of the potentially dilutive restricted stock units and stock options using the treasury stock method.

| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands, except per common share data) | 2019 |  | 2018 |  | 2019 |  | 2018
Net income (loss) attributable to Tutor Perini Corporation | $ | (320,530) |  | $ | 24,883 |  | $ | (320,886) |  | $ | 12,759
Weighted-average common shares outstanding, basic |  | 50,224 |  |  | 49,946 |  |  | 50,161 |  |  | 49,880
Effect of dilutive restricted stock units and stock options |  | — |  |  | 494 |  |  | — |  |  | 247
Weighted-average common shares outstanding, diluted |  | 50,224 |  |  | 50,440 |  |  | 50,161 |  |  | 50,127
Net income (loss) attributable to Tutor Perini Corporation per common share: |  |  |  |  |  |  |  |  |  |  |
Basic | $ | (6.38) |  | $ | 0.50 |  | $ | (6.40) |  | $ | 0.26
Diluted | $ | (6.38) |  | $ | 0.49 |  | $ | (6.40) |  | $ | 0.25
Anti-dilutive securities not included above |  | 4,191 |  |  | 1,682 |  |  | 4,354 |  |  | 3,095

The net loss attributable to Tutor Perini Corporation per common share for the three and six months ended June 30, 2019 in the table above reflects the impact of the $379.9 million goodwill impairment charge discussed in Note 8, Goodwill and Intangible Assets, an after-tax impact of $329.5 million, or $6.56 and $6.57 per diluted share for the three and six months ended June 30, 2019, respectively.

All restricted stock units and stock options that were outstanding during the three and six months ended June 30, 2019 were excluded from weighted-average diluted shares outstanding for the periods, as the shares would have a dilutive effect on the net losses. Since the Company has the intent and ability to settle the principal amount of the Convertible Notes in cash, per ASC 260, the settlement of the principal amount was excluded from the calculation of diluted EPS.

(7) Income Taxes

The Company’s effective income tax rate was 12.0% and 11.6% for the three and six months ended June 30, 2019, respectively, and 30.0% and 31.2% for the three and six months ended June 30, 2018. The Company’s provision for income taxes and effective tax rates for the three and six months ended June 30, 2019 were significantly impacted by the goodwill impairment charge discussed in Note 8, Goodwill and Intangible Assets. Of the total goodwill impairment charge of $379.9 million, approximately $209.5 million pertained to goodwill that is not tax deductible and yielded permanent differences between book income and taxable income. For the three and six months ended June 30, 2019, the Company recognized a tax benefit totaling $50.4 million as a result of the impairment charge. Additionally, approximately $50.4 million was recorded as a deferred tax asset or a reduction of a previously recorded deferred tax liability due to the impairment charge.

The adjusted effective income tax rates, which exclude the tax benefit resulting from the goodwill impairment charge, were 34.7% and 34.0% for the three and six months ended June 30, 2019, respectively, and primarily reflect the unfavorable impact of expired stock options for which the share-based compensation expense recognized in prior periods will not be deductible for income taxes. For the three and six months ended June 30, 2019 and 2018, the effective tax rates were higher than the federal statutory rates also as a result of state income taxes, with the increases partially offset by earnings attributable to noncontrolling interests for which income taxes are not the responsibility of the Company.

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(8) Goodwill and Intangible Assets

Goodwill

The following table presents the changes in the carrying amount of goodwill since its inception through June 30, 2019:

|  |  |  |  |  |  | Specialty |  |  |
(in thousands) | Civil |  |  | Building |  | Contractors |  | Total
Gross goodwill | $ | 492,074 |  | $ | 424,724 |  | $ | 156,193 |  | $ | 1,072,991
Accumulated impairment |  | (76,716) |  |  | (411,269) |  |  | — |  |  | (487,985)
Balance as of December 31, 2018 |  | 415,358 |  |  | 13,455 |  |  | 156,193 |  |  | 585,006
Second quarter 2019 impairment |  | (210,215) |  |  | (13,455) |  |  | (156,193) |  |  | (379,863)
Balance as of June 30, 2019(a) | $ | 205,143 |  | $ | — |  | $ | — |  | $ | 205,143

(a)As of June 30, 2019, accumulated impairment was $867.8 million.

The aggregate carrying amount of goodwill allocated to the Company’s three reporting units as of December 31, 2018 was $585.0 million. The Company tests the goodwill allocated to its reporting units for impairment annually on October 1, or more frequently if events or circumstances indicate it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The Company performed its 2018 annual impairment test as of October 1, 2018 using a weighted average of (1) an income approach and (2) a market approach to determine the fair value of each reporting unit and concluded that the goodwill was not impaired since the estimated fair value of each reporting unit exceeded its respective net book value. In addition, the Company determined the implied control premium (the excess of the aggregated fair values of its reporting units over its market capitalization) was consistent with and within a reasonable range of actual premiums paid in industry-specific merger and acquisition (“M&A”) transactions over a sustained period of time.

During the interim periods since the date of the last annual test, and prior to the second quarter of 2019, the Company concluded that no triggering events had occurred. In the second quarter of 2019, in connection with the preparation of its quarterly financial statements, the Company assessed the changes in circumstances that occurred during the quarter to determine whether it was more likely than not that the fair values of any of its reporting units were below their carrying amounts. While there was no single determinative event or factor, potential triggering events identified in the accounting guidance (ASC 350, Intangibles – Goodwill and Other) developed during the second quarter of 2019, which led the Company to conclude that, when considering the events and factors in totality, it was more likely than not that the fair values of each of its reporting units were below their carrying amounts. The triggering factors included:

The Company faced a declining stock price and observed a sustained decrease subsequent to the filing of the Company’s first quarter Form 10-Q on May 8, 2019, in both absolute terms and relative to its peers. Consistent with the average stock prices of companies in its peer group, the Company’s stock price had been trending lower over several prior periods; however, during the second quarter of 2019, the Company’s stock price dropped to a 52-week low while the average stock price of companies in its peer group increased. The Company believes that delays experienced in resolving certain claims and unapproved change orders, which when combined with the increased working capital needs and significant negative operating cash flows in the first quarter of 2019, has contributed significantly to the sustained decrease in the Company’s stock price;

The Company experienced significant negative operating cash flows from each of its reporting units in the first quarter of 2019, and that trend continued at the beginning of the second quarter; and

The Company’s debt rating was downgraded by a major credit rating agency on May 17, 2019.

As the Company determined that it was more likely than not that the fair values of its reporting units were below their carrying amounts, the Company performed an interim impairment test as of June 1, 2019 (the “Interim Test”) and, as described below, recognized a non-cash impairment loss totaling $379.9 million.

The decrease in the Company’s stock price reduced its total market capitalization and increased the implied control premium to a level beyond observable market-comparable data. As a result, when performing the Interim Test, the Company increased the discount rates and the projected investments in working capital compared to the assumptions used in the previous October 1 test, which extended the timing of certain expected future cash flows in the calculation of fair value under the income-based approach. The Company believes these are changes reflective of market participant inputs and the recent decrease in the Company’s market valuation.

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Consistent with the previous October 1, 2018 test, the Company utilized a weighted average of (1) an income approach and (2) a market approach to determine the fair value of the Company and each of its reporting units for the Interim Test. The income approach is based on estimated present value of future cash flows for each reporting unit. The market approach is based on assumptions about how market data relates to each reporting unit. The weighting of these two approaches is based on their individual correlation to the economics of each reporting unit and is impacted by factors such as the availability of comparable market data for each reporting unit.

Assessing impairment inherently involves management judgments as to the assumptions used to calculate fair value of the reporting units and the impact of market conditions on those assumptions. The key inputs that the Company uses in its assumptions to estimate the fair value of its reporting units under the income-based approach are as follows:

Weighted average cost of capital (“WACC”), the risk-adjusted rate used to discount the projected cash flows;

Cash flows generated from existing work and new awards; and

Projected operating margins.

Expected future after-tax operating cash flows of each reporting unit are discounted to a present value using a risk-adjusted discount rate. Estimates of future cash flows require management to make significant assumptions concerning future operating performance including cash flows generated from existing work and new awards, projected operating margins, variations in the amount and timing of cash flows and the probability of achieving the estimated cash flows, as well as future economic conditions, which may differ from actual future cash flows. The discount rate, which is intended to reflect the risks inherent in future cash flow projections, used in estimating the present value of future cash flows, is based on estimates of the WACC of market participants relative to the reporting units. Financial and credit market volatility can directly impact certain inputs and assumptions used to develop the WACC.

To develop the cash flows generated from new awards and future operating margins, the Company tracks known prospects of significance for each of its reporting units and considers the estimated timing of when the work is expected to be bid, started and completed. The Company also gives consideration to its relationships with the prospective owners; the pool of competitors that are capable of performing large, complex work; business strategy; and the Company’s history of success in winning new work in each reporting unit. With regard to operating margins, the Company gives consideration to its historical reporting unit operating margins in the end markets that the prospective work opportunities are most significant, expected margins from existing work, current market trends in recent new work procurement, and business strategy.

The Company also estimated the fair value of its reporting units under a market-based approach by applying industry-comparable multiples of revenues and operating earnings to its reporting units’ revenues and operating earnings. The conditions and prospects of companies in the engineering and construction industry depend on common factors such as overall demand for services.

The Company believes that the discount rates, timing of cash flows and other inputs and assumptions used in the Interim Test are consistent with those that a market participant would use based on the events described above which occurred during the second quarter of 2019 and are reflective of the current market assessment of the fair value of its reporting units. In addition, the Company believes that its estimates and assumptions about future revenues and margin projections in the Interim Test were reasonable and consistent with the estimates and assumptions used in the annual goodwill impairment test as of October 1, 2018. As an additional step to corroborate the Interim Test results, the Company compared its implied control premium with those of recent comparable market transactions and concluded that the implied control premium was within the range of control premiums observed in prior industry-specific M&A transactions.

Similar to previous valuations, the Company noted that small changes to valuation assumptions could have a significant impact on the concluded value. The assumption changes described above were relatively larger in the Specialty Contractors reporting unit than in the Civil or Building reporting units, as Specialty Contractors has not met recent market expectations.

As of June 30, 2019, the carrying value of the Civil reporting unit approximates its fair value. As such, there is a risk of additional goodwill impairment if future events related to the Civil reporting unit are less favorable than what the Company assumed or estimated in its Interim Test. The Company will continue to monitor events occurring or circumstances changing which may suggest that goodwill should be reevaluated during interim periods prior to the annual impairment test. These events and circumstances include, but are not limited to, a sustained decline in our stock price and market capitalization, as well as quantitative and qualitative factors specific to the Civil reporting unit which indicate potential triggering events that would more likely than not reduce the fair value of the Civil reporting unit below its carrying amount.

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Intangible Assets

Intangible assets consist of the following:

| As of June 30, 2019 |  | Weighted
|  |  |  |  |  |  | Accumulated |  |  |  |  | Average
|  |  |  |  | Accumulated |  | Impairment |  | Carrying |  | Amortization
(in thousands) | Cost |  |  | Amortization |  | Charge |  | Value |  | Period
Trade names (non-amortizable) | $ | 117,600 |  | $ | — |  | $ | (67,190) |  | $ | 50,410 |  | Indefinite
Trade names (amortizable) |  | 74,350 |  |  | (20,023) |  |  | (23,232) |  |  | 31,095 |  | 20 years
Contractor license |  | 6,000 |  |  | — |  |  | (6,000) |  |  | — |  | N/A
Customer relationships |  | 39,800 |  |  | (20,520) |  |  | (16,645) |  |  | 2,635 |  | 12 years
Construction contract backlog |  | 73,706 |  |  | (73,706) |  |  | — |  |  | — |  | N/A
Total | $ | 311,456 |  | $ | (114,249) |  | $ | (113,067) |  | $ | 84,140 |  |  |
| As of December 31, 2018 |  | Weighted
|  |  |  |  |  |  | Accumulated |  |  |  |  | Average
|  |  |  |  | Accumulated |  | Impairment |  | Carrying |  | Amortization
(in thousands) | Cost |  |  | Amortization |  | Charge |  | Value |  | Period
Trade names (non-amortizable) | $ | 117,600 |  | $ | — |  | $ | (67,190) |  | $ | 50,410 |  | Indefinite
Trade names (amortizable) |  | 74,350 |  |  | (18,780) |  |  | (23,232) |  |  | 32,338 |  | 20 years
Contractor license |  | 6,000 |  |  | — |  |  | (6,000) |  |  | — |  | N/A
Customer relationships |  | 39,800 |  |  | (19,992) |  |  | (16,645) |  |  | 3,163 |  | 12 years
Construction contract backlog |  | 73,706 |  |  | (73,706) |  |  | — |  |  | — |  | N/A
Total | $ | 311,456 |  | $ | (112,478) |  | $ | (113,067) |  | $ | 85,911 |  |  |

Amortization expense for the three and six months ended June 30, 2019 was $0.9 million and $1.8 million, respectively. Amortization expense for the three and six months ended June 30, 2018 was $0.9 million and $1.8 million, respectively. As of June 30, 2019, amortization expense is estimated to be $1.8 million for the remainder of 2019, $3.5 million in 2020, $3.4 million in 2021, $2.6 million in 2022 and $2.5 million in both 2023 and 2024.

Certain trade names have an estimated indefinite life and are not amortized to earnings, but instead are reviewed for impairment annually, or more often if events occur or circumstances change which suggest that the non-amortizable trade names should be reevaluated. The Company has also monitored events and circumstances as well as any entity-specific quantitative or qualitative factors, which occurred during interim periods since the annual test, that suggest intangible assets should be reevaluated for impairment. Management concluded that no triggering events occurred since the date of its last annual test and prior to the second quarter that would more likely than not reduce the fair value of the Company’s intangible assets below their carrying amounts.

In conjunction with its interim goodwill test during the second quarter of 2019, the Company also evaluated its non-amortizable trade names for potential impairment due to the triggering factors related to goodwill mentioned above. The Company performed its interim impairment test by comparing the carrying value of its indefinite-lived intangible assets to their calculated fair value, which is determined by the income approach (relief from royalty method). This income-based valuation approach involves similar key assumptions to the goodwill impairment analysis discussed above. The interim impairment test performed in the second quarter of 2019 resulted in an estimated fair value for the non-amortizable trade names that substantially exceeded their respective net book values; therefore, no impairment charge was necessary for the six months ended June 30, 2019. While the key assumptions used in the impairment test of the non-amortizable trade names are similar to those used in the evaluation of goodwill, historically, the headroom (the excess of calculated fair value over carrying value) has been relatively higher for non-amortizable trade names than for goodwill. Unlike goodwill, trade names possess inherent value based on market perception which is valued considering the cost savings available through ownership and the avoidance of paying royalties associated with revenue generation. The discounted value is not impacted by cash flow related assumptions such as working capital investment. Consequently, goodwill was impaired while the non-amortizable trade name intangible assets were not.

The Company also performed a qualitative assessment to evaluate its long-lived tangible and intangible assets with finite lives due to the changes in circumstances since the Company’s 2018 annual impairment analysis. Based on this assessment in which there were no identified changes to market prices, the manner of use or the planned purchase or sale of assets/asset groups, the Company concluded that no triggering events occurred since the date of its last annual test that would more likely than not reduce the fair value of its long-lived tangible and intangible assets with finite lives below their carrying amounts.

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(9) Financial Commitments

Long-Term Debt

Long-term debt as reported on the Condensed Consolidated Balance Sheets consisted of the following:

| As of June 30, |  | As of December 31,
(in thousands) | 2019 |  | 2018
2017 Senior Notes | $ | 493,935 |  | $ | 493,521
2017 Credit Facility |  | 235,000 |  |  | 41,000
Convertible Notes |  | 176,760 |  |  | 171,481
Equipment financing and mortgages |  | 42,961 |  |  | 50,904
Other indebtedness |  | 7,521 |  |  | 4,598
Total debt |  | 956,177 |  |  | 761,504
Less: Current maturities |  | 14,414 |  |  | 16,767
Long-term debt, net | $ | 941,763 |  | $ | 744,737

The following table reconciles the outstanding debt balance to the reported debt balances as of June 30, 2019 and December 31, 2018:

| As of June 30, 2019 |  | As of December 31, 2018
(in thousands) | Outstanding Long-Term Debt |  | Unamortized Discount and Issuance Costs |  | Long-Term Debt, as reported |  | Outstanding Long-Term Debt |  | Unamortized Discount and Issuance Costs |  | Long-Term Debt, as reported
2017 Senior Notes | $ | 500,000 |  | $ | (6,065) |  | $ | 493,935 |  | $ | 500,000 |  | $ | (6,479) |  | $ | 493,521
Convertible Notes |  | 200,000 |  |  | (23,240) |  |  | 176,760 |  |  | 200,000 |  |  | (28,519) |  |  | 171,481

The unamortized issuance costs related to the 2017 Credit Facility were $4.5 million and $4.8 million as of June 30, 2019 and December 31, 2018, respectively, and are included in other assets in the Condensed Consolidated Balance Sheets.

2017 Senior Notes

On April 20, 2017, the Company issued $500 million in aggregate principal amount of 6.875% Senior Notes due 2025 (the “2017 Senior Notes”) in a private placement offering. Interest on the 2017 Senior Notes is payable in arrears semi-annually in May and November of each year, beginning in November 2017.

Prior to May 1, 2020, the Company may redeem the 2017 Senior Notes at a redemption price equal to 100% of their principal amount plus a “make-whole” premium described in the indenture. In addition, prior to May 1, 2020, the Company may redeem up to 40% of the original aggregate principal amount of the notes at a redemption price of 106.875% of their principal amount with the proceeds received by the Company from any offering of the Company’s equity. After May 1, 2020, the Company may redeem the 2017 Senior Notes at specified redemption prices described in the indenture. Upon a change of control, holders of the 2017 Senior Notes may require the Company to repurchase all or part of the 2017 Senior Notes at 101% of the principal amount thereof, plus accrued and unpaid interest to the redemption date.

The 2017 Senior Notes are senior unsecured obligations of the Company and are guaranteed by substantially all of the Company’s existing and future subsidiaries that also guarantee obligations under the Company’s 2017 Credit Facility, as defined below. In addition, the indenture for the 2017 Senior Notes provides for customary covenants, including events of default and restrictions on the payment of dividends and share repurchases.

2017 Credit Facility

On April 20, 2017, the Company entered into a credit agreement (the “2017 Credit Facility”) with SunTrust Bank as Administrative Agent, Swing Line Lender and L/C Issuer and a syndicate of other lenders. The 2017 Credit Facility provides for a $350 million revolving credit facility (the “2017 Revolver”) and a sublimit for the issuance of letters of credit and swingline loans up to the aggregate amount of $150 million and $10 million, respectively, both maturing on April 20, 2022, unless any of the Convertible

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Notes, as defined below, are outstanding on December 17, 2020, in which case all such borrowings will mature on December 17, 2020 (subject to certain further exceptions). In addition, the 2017 Credit Facility permits additional borrowings in an aggregate amount of $150 million, which can be in the form of increased capacity on the 2017 Revolver or the establishment of one or more term loans.

Borrowings under the 2017 Revolver bear interest, at the Company’s option, at a rate equal to (a) the London Interbank Offered Rate (“LIBOR”) plus a margin of between 1.50% and 3.00% or (b) a base rate (determined by reference to the highest of (i) the administrative agent’s prime lending rate, (ii) the federal funds effective rate plus 50 basis points, (iii) the LIBOR rate for a one-month interest period plus 100 basis points and (iv) 0%), plus a margin of between 0.50% and 2.00%, in each case based on the Consolidated Leverage Ratio (as defined in the 2017 Credit Facility). In addition to paying interest on outstanding principal under the 2017 Credit Facility, the Company will pay a commitment fee to the lenders under the 2017 Revolver in respect of the unutilized commitments thereunder. The Company will pay customary letter of credit fees. If an event of default occurs and is continuing, the otherwise applicable margin and letter of credit fees will be increased by 2% per annum. The weighted-average annual interest rate on borrowings under the 2017 Revolver was approximately 5.18% during the six months ended June 30, 2019.

The 2017 Credit Facility contains customary covenants for credit facilities of this type, including maximum consolidated leverage ratios ranging from 4.00:1.00 to 3.25:1.00 over the life of the facility and a minimum consolidated fixed charge coverage ratio of 1.25:1.00. On May 7, 2019, certain provisions of the 2017 Credit Facility were amended, including setting the maximum leverage ratio at 3.50:1.00 for the remainder of its term, thus eliminating the step down from 3.50:1:00 to 3.25:1.00. Substantially all of the Company’s subsidiaries unconditionally guarantee the obligations of the Company under the 2017 Credit Facility; additionally, the obligations are secured by a lien on all personal property of the Company and its subsidiaries guaranteeing these obligations.

As of June 30, 2019, there was $115 million available under the 2017 Revolver, and the Company had not utilized the 2017 Credit Facility for letters of credit. The Company was in compliance with the financial covenants under the 2017 Credit Facility as of June 30, 2019 (the goodwill impairment charge, as discussed in Note 8, Goodwill and Intangible Assets, did not impact the financial covenant calculations).

Convertible Notes

On June 15, 2016, the Company issued $200 million of 2.875% Convertible Senior Notes due June 15, 2021 (the “Convertible Notes”) in a private placement offering. The Convertible Notes are unsecured obligations and do not contain any financial covenants or restrictions on the payments of dividends, the incurrence of indebtedness or the issuance or repurchase of securities by the Company. The Convertible Notes bear interest at a rate of 2.875% per year, payable in cash semi-annually in June and December.

Prior to January 15, 2021, the Convertible Notes will be convertible only under the following circumstances: (1) during the five business day period after any ten consecutive trading day period in which the trading price per $1,000 principal amount of Convertible Notes for such trading day was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate on each such trading day; (2) if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion rate of 33.0579 (or $39.32) on each applicable trading day; or (3) upon the occurrence of specified corporate events. On or after January 15, 2021 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes, in multiples of $1,000 principal amount, at the option of the holder regardless of the foregoing circumstances.

The Convertible Notes will be convertible at an initial conversion rate of 33.0579 shares of the Company’s common stock per $1,000 principal amount of the Convertible Notes, which is equivalent to an initial conversion price of approximately $30.25. The conversion rate will be subject to adjustment for some events but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date, the Company is required to increase, in certain circumstances, the conversion rate for a holder who elects to convert their Convertible Notes in connection with such a corporate event including customary conversion rate adjustments in connection with a “make-whole fundamental change” described in the indenture. Upon conversion, and at the Company’s election, the Company may satisfy its conversion obligation with cash, shares of its common stock or a combination thereof. As of June 30, 2019, the conversion provisions of the Convertible Notes have not been triggered.

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Interest Expense

Interest expense as reported in the Condensed Consolidated Statements of Operations consisted of the following:

| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Cash interest expense: |  |  |  |  |  |  |  |  |  |  |
Interest on 2017 Senior Notes | $ | 8,594 |  | $ | 8,594 |  | $ | 17,187 |  | $ | 17,187
Interest on 2017 Credit Facility |  | 3,682 |  |  | 2,354 |  |  | 6,327 |  |  | 3,704
Interest on Convertible Notes |  | 1,438 |  |  | 1,437 |  |  | 2,875 |  |  | 2,875
Other interest |  | 541 |  |  | 626 |  |  | 1,116 |  |  | 1,383
Total cash interest expense |  | 14,255 |  |  | 13,011 |  |  | 27,505 |  |  | 25,149
Non-cash interest expense:(a) |  |  |  |  |  |  |  |  |  |  |
Amortization of discount and debt issuance costs on Convertible Notes |  | 2,671 |  |  | 2,432 |  |  | 5,279 |  |  | 4,808
Amortization of debt issuance costs on 2017 Credit Facility |  | 387 |  |  | 360 |  |  | 749 |  |  | 720
Amortization of debt issuance costs on 2017 Senior Notes |  | 209 |  |  | 195 |  |  | 414 |  |  | 386
Total non-cash interest expense |  | 3,267 |  |  | 2,987 |  |  | 6,442 |  |  | 5,914
Total interest expense | $ | 17,522 |  | $ | 15,998 |  | $ | 33,947 |  | $ | 31,063

(a)The combination of cash and non-cash interest expense produces effective interest rates that are higher than contractual rates. Accordingly, the effective interest rates for the 2017 Senior Notes and the Convertible Notes were 7.13% and 9.39%, respectively, for the six months ended June 30, 2019.

(10) Leases

The Company leases certain office space, construction and office equipment, vehicles and temporary housing generally under non-cancelable operating leases. Leases with an initial term of one year or less are not recorded on the balance sheet, and the Company generally recognizes lease expense for these leases on a straight-line basis over the lease term. As of June 30, 2019, the Company’s operating leases have remaining lease terms ranging from less than one year to 10 years, some of which include options to renew the leases. The exercise of lease renewal options is generally at the Company’s sole discretion. The Company’s leases do not contain any material residual value guarantees or material restrictive covenants.

The Company determines if an arrangement is a lease at inception. Operating lease ROU assets are included in other assets, while current and long-term operating lease liabilities are included in accrued expenses and other current liabilities, and other long-term liabilities, respectively, on the Condensed Consolidated Balance Sheet as of June 30, 2019. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. The present value of future lease payments are discounted using either the implicit rate in the lease, if known, or the Company’s incremental borrowing rate for the specific lease as of the lease commencement date. The ROU asset is also adjusted for any prepayments made or incentives received. The lease terms include options to extend or terminate the lease only to the extent it is reasonably certain any of those options will be exercised. Lease expense is recognized on a straight-line basis over the lease term. The Company accounts for lease components (e.g., fixed payments) separate from the non-lease components (e.g., common-area maintenance costs). The Company does not have any material financing leases.

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The following table presents components of lease expense for the three and six months ended June 30, 2019:

| Three Months Ended |  | Six Months Ended
(in thousands) | June 30, 2019 |  | June 30, 2019
Operating lease expense | $ | 3,921 |  | $ | 7,702
Short-term lease expense(a) |  | 16,486 |  |  | 33,057
|  | 20,407 |  |  | 40,759
Less: Sublease income |  | 262 |  |  | 521
Total lease expense | $ | 20,145 |  | $ | 40,238

(a)Short-term lease expense includes all leases with lease terms ranging from less than one month to one year. Short-term leases include, among other things, construction equipment rented on an as-needed basis as well as temporary housing.

The following table presents supplemental balance sheet information related to operating leases as of June 30, 2019:

|  | As of June 30,
(dollars in thousands) | Balance Sheet Line Item | 2019
Assets |  |  |
ROU assets | Other assets | $ | 42,968
Total lease assets |  | $ | 42,968
Liabilities |  |  |
Current lease liabilities | Accrued expenses and other current liabilities | $ | 11,991
Long-term lease liabilities | Other long-term liabilities |  | 34,002
Total lease liabilities |  | $ | 45,993
Weighted-average remaining lease term (in years) |  |  | 4.7
Weighted-average discount rate |  |  | 5.85%

The following table presents supplemental cash flow information and non-cash activity related to operating leases for the six months ended June 30, 2019:

| Six Months Ended
(in thousands) | June 30, 2019
Operating cash flow information: |  |
Cash paid for amounts included in the measurement of lease liabilities | $ | (7,622)
Non-cash activity: |  |
ROU assets obtained in exchange for lease liabilities | $ | 6,040

The following table presents maturities of operating lease liabilities on an undiscounted basis as of June 30, 2019:

Year (in thousands) | Operating Leases
2019 (excluding the six months ended June 30, 2019) | $ | 7,442
2020 |  | 11,987
2021 |  | 8,595
2022 |  | 7,346
2023 |  | 6,129
Thereafter |  | 12,431
Total lease payments |  | 53,930
Less: Imputed interest |  | 7,937
Total | $ | 45,993

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As of December 31, 2018, future minimum lease payments under long-term non-cancelable operating leases as classified under ASC 840 were as follows:

Year (in thousands) | Operating Leases
2019 | $ | 14,039
2020 |  | 10,706
2021 |  | 7,464
2022 |  | 6,567
2023 |  | 5,587
Thereafter |  | 11,662
|  | 56,025
Less: Sublease rental agreements |  | 1,398
Total | $ | 54,627

(11) Commitments and Contingencies

The Company and certain of its subsidiaries are involved in litigation and other legal proceedings and forms of dispute resolution in the ordinary course of business, including but not limited to disputes over contract payment and/or performance-related issues (such as disagreements regarding delay or a change in the scope of work of a project and/or the price associated with that change) and other matters incidental to the Company’s business. In accordance with ASC 606, the Company makes assessments of these types of matters on a routine basis and, to the extent permitted by ASC 606, estimates and records recovery related to these matters as a form of variable consideration at the most likely amount the Company expects to receive, as discussed further in Note 4, Contract Assets and Liabilities. In addition, the Company is contingently liable for litigation, performance guarantees and other commitments arising in the ordinary course of business, which are accounted for in accordance with ASC 450, Contingencies. Management reviews these matters regularly and updates or revises its estimates from time to time as warranted by subsequent information and developments. These assessments require judgments concerning matters that are inherently uncertain, such as litigation developments and outcomes, the anticipated outcome of negotiations and the estimated cost of resolving disputes. Consequently, these assessments are estimates, and actual amounts may vary from such estimates. In addition, because such matters are typically resolved over long periods of time, the Company’s assets and liabilities may change over time should the circumstances dictate. Management believes that, based on current information and discussions with the Company’s legal counsel, the ultimate resolution of these matters is not expected to have a material effect on the Company’s consolidated financial position.

Long Island Expressway/Cross Island Parkway Matter

The Company reconstructed the Long Island Expressway/Cross Island Parkway Interchange (“LIE Project”) for the New York State Department of Transportation (“NYSDOT”). The $130 million project was substantially completed in January 2004 and was accepted by NYSDOT as complete in February 2006. The Company incurred significant added costs in completing its work and suffered extended schedule costs due to numerous design errors, undisclosed utility conflicts, lack of coordination with local agencies and other interferences for which the Company believes NYSDOT is responsible.

In March 2011, the Company opened a case with the New York State Court of Claims against NYSDOT related to the LIE Project. In May 2011, NYSDOT filed a motion to dismiss the Company’s claim on the grounds that the Company had not provided required documentation for project closeout and filing of a claim. In September 2011, the Company reached agreement on final payment with the Comptroller’s Office on behalf of NYSDOT, which resulted in an amount of $0.5 million payable to the Company and formally closed out the project allowing the Company to re-file its claim. In March 2012, the Company filed its formal Verified Claim seeking $50.7 million in damages. In May 2012, NYSDOT served its answer and asserted counterclaims in the amount of $151 million alleging fraud in the inducement and punitive damages related to alleged violations of the disadvantaged business enterprise (“DBE”) requirements for the project. The Court subsequently ruled that NYSDOT’s counterclaims may only be asserted as a defense and offset to the Company’s claims and not as affirmative claims. In November 2014, the Appellate Division First Department affirmed the dismissal of NYSDOT’s affirmative counterclaims. In June 2018, following additional summary judgment motions, the Court granted the Company’s motion to dismiss NYSDOT’s affirmative defenses, which eliminated the use of NYSDOT’s counterclaims of $151 million as a defense to the claims of the Company. In October 2018, NYSDOT filed a notice of appeal. A trial date for the appeal has not been set.

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Management has made an estimate of the total anticipated recovery on this project, and such estimate is included in revenue recorded to date. To the extent new facts become known or the final recovery included in the claim settlement varies from the estimate, the impact of the change will be reflected in the consolidated financial statements at that time. As of June 30, 2019, the Company has concluded that the potential for a material adverse financial impact due to NYSDOT’s counterclaims is remote.

Fontainebleau Matter

Desert Mechanical, Inc. (“DMI”) and Fisk Electric Company (“Fisk”), wholly owned subsidiaries of the Company, were subcontractors on the Fontainebleau project located in Las Vegas, Nevada, a hotel/casino complex with approximately 3,800 rooms (the “Project”). In June 2009, the owners of the Project filed for bankruptcy protection, under Chapter 11 of the U.S. Bankruptcy Code, in the Southern District of Florida.

DMI and Fisk recorded mechanic’s liens against the Project totaling approximately $44 million, for unpaid labor, materials and equipment it furnished to the Project. Other unaffiliated contractors, subcontractors and suppliers also recorded mechanic’s liens against the Project, subjecting the property to approximately $550 million in total lien claims by the various lien claimants who furnished labor, materials and equipment to the Project (the “Statutory Lienholders”). In June 2009, DMI filed suit against Turnberry West Construction, Inc., the general contractor, in the Eighth Judicial District Court, Clark County, Nevada, and in May 2010, the court entered an order in favor of DMI for approximately $45 million.

In January 2010, the Bankruptcy Court approved the sale of the Property to Icahn Nevada Gaming Acquisition, LLC for approximately $150 million. Certain Project lenders (the “Lenders”) who had recorded deeds of trust as security interests in the property which far exceeded the sale proceeds, filed suit against the Statutory Lienholders, including DMI and Fisk, alleging that all mechanic’s liens were subordinate to the Lenders’ deeds of trust against the property. The Nevada Supreme Court ruled in October 2012 that under Nevada Law, the mechanic’s lien claims had priority over a portion of the deeds of trust, but not all of them.

In October 2013, a comprehensive settlement agreement was reached by and among the Statutory Lienholders and the Lenders to divide the Sale Proceeds such that the Statutory Lienholders would receive approximately $85 million of the sale proceeds (the “Net Statutory Lienholder Proceeds”) and the Lenders would receive the balance. The Bankruptcy Court appointed a mediator to facilitate a settlement between the Statutory Lienholders as to how the Net Statutory Lienholder Proceeds would be distributed, but after engaging in numerous mediation sessions spanning several years, the parties were unable to reach a resolution. DMI filed a motion seeking permission from the Bankruptcy Court to file an action in Nevada to enforce its lien rights against the Net Statutory Lienholder Proceeds, and the motion was granted. Pursuant to that order, litigation involving all Statutory Lienholders was commenced at the end of November 2017 (the “Nevada Action”).

On April 25, 2019, DMI and Fisk agreed to a settlement in the Nevada Action with another Statutory Lienholder, who has guaranteed payment on account of their claims. The settlement amount will be paid when the Bankruptcy Court distributes the Net Statutory Lienholder Proceeds to the Statutory Lienholders, which is expected to occur later in 2019. The settlement had no material impact on the consolidated financial statements.

Five Star Electric Matter

In the third quarter of 2015, Five Star Electric Corp. (“Five Star”), a wholly owned subsidiary of the Company that was acquired in 2011, entered into a tolling agreement (which has since expired) related to an ongoing investigation being conducted by the United States Attorney’s Office for the Eastern District of New York (“USAO EDNY”). Five Star has been cooperating with the USAO EDNY since late June 2014, when it was first made aware of the investigation, and has provided information requested by the government related to its use of certain minority-owned, women-owned, small and disadvantaged business enterprises and certain of Five Star’s employee compensation, benefit and tax practices.

As of June 30, 2019, the Company cannot predict the ultimate outcome of the investigation and cannot reasonably estimate the potential loss or range of loss that Five Star or the Company may incur or the impact of the results of the investigation on Five Star or the Company.

Alaskan Way Viaduct Matter

In January 2011, Seattle Tunnel Partners (“STP”), a joint venture between Dragados USA, Inc. and the Company, entered into a design-build contract with the Washington State Department of Transportation (“WSDOT”) for the construction of a large diameter bored tunnel in downtown Seattle, King County, Washington to replace the Alaskan Way Viaduct, also known as State Route 99.

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The construction of the large diameter bored tunnel required the use of a tunnel boring machine (“TBM”). In December 2013, the TBM struck a steel pipe, installed by WSDOT as a well casing for an exploratory well. The TBM was damaged and was required to be repaired. STP has asserted that the steel pipe casing was a differing site condition that WSDOT failed to properly disclose. The Disputes Review Board mandated by the contract to hear disputes issued a decision finding the steel casing was a Type I differing site condition. WSDOT has not accepted that finding.

The TBM was insured under a Builder’s Risk Insurance Policy (the “Policy”) with Great Lakes Reinsurance (UK) PLC and a consortium of other insurers (the “Insurers”). STP submitted the claims to the Insurers and requested interim payments under the Policy. The Insurers refused to pay and denied coverage. In June 2015, STP filed a lawsuit in the King County Superior Court, State of Washington seeking declaratory relief concerning contract interpretation, as well as damages as a result of the Insurers’ breach of their obligations under the terms of the Policy. STP is also asserting extra-contractual and statutory claims against the Insurers. WSDOT is deemed a plaintiff since WSDOT is an insured under the Policy and had filed its own claim for damages. Hitachi Zosen (“Hitachi”), the manufacturer of the TBM, has also joined the case as a plaintiff for costs incurred to repair the damages to the TBM. In September 2018, rulings received on pre-trial motions effectively limited potential recovery under the Policy for STP, WSDOT and Hitachi. However, on December 19, 2018, the Court of Appeal granted the Company’s request for a discretionary appeal of those rulings. The appeal is expected to be heard in the second half of 2019. STP submitted damages to the Insurers in the King County lawsuit in the amount of $532 million. STP is also seeking these damages from WSDOT and Hitachi related to the pipe-strike by the TBM in a related lawsuit in Thurston County (see following paragraph).

In March 2016, WSDOT filed a complaint against STP in Thurston County Superior Court for breach of contract alleging STP’s delays and failure to perform, seeking $57.2 million in damages and seeking declaratory relief concerning contract interpretation. STP filed its answer to WSDOT’s complaint and filed a counterclaim against WSDOT and Hitachi seeking damages of $667 million. Trial is scheduled for October 2019.

As of June 30, 2019, the Company has concluded that the potential for a material adverse financial impact due to the Insurers’ denial of coverage and WSDOT’s legal actions is neither probable nor remote, and the potential loss or range of loss is not reasonably estimable. With respect to STP’s claims against the Insurers, WSDOT and Hitachi, management has included an estimate of the total anticipated recovery, concluded to be both probable and reliably estimable, in receivables or costs and estimated earnings in excess of billings recorded to date. To the extent new facts become known or the final recoveries vary from the estimate, the impact of the change will be reflected in the financial statements at that time.

(12) Share-Based Compensation

As of June 30, 2019, there were 1,553,243 shares of common stock available for grant under the Tutor Perini Corporation Omnibus Incentive Plan. During the first six months of 2019 and 2018, the Company issued the following share-based instruments: (1) restricted stock units totaling 175,000 and 614,000 with weighted-average fair values per share of $20.41 and $25.19, respectively; (2) stock options totaling 85,000 and 579,000 with weighted-average fair values per share of $7.57 and $11.45, respectively, and weighted-average per share exercise prices of $25.62 and $23.73, respectively; and (3) unrestricted stock units totaling 98,591 and 115,420 with weighted-average fair values per share of $15.72 and $21.26, respectively. During the six months ended June 30, 2019, 750,000 stock options with a weighted-average per share exercise price of $20.33 expired.

The fair value of restricted and unrestricted stock units is based on the closing price of the Company’s common stock on the New York Stock Exchange on the date of the grant and the fair value of stock options is based on the Black-Scholes model. The fair value of stock options granted during the first six months of 2019 was determined using the Black-Scholes model based on the following weighted-average assumptions: (i) expected life of 5.4 years, (ii) expected volatility of 36.63%, (iii) risk-free rate of 2.66%, and (iv) no quarterly dividends. For certain performance-based awards containing market condition components, the fair value on the grant date is determined using a Monte Carlo simulation model.

For the three and six months ended June 30, 2019, the Company recognized, as part of general and administrative expenses, costs for share-based payment arrangements totaling $4.6 million and $10.1 million, respectively, and $6.0 million and $12.1 million for the three and six months ended June 30, 2018, respectively. As of June 30, 2019, the balance of unamortized share-based compensation expense was $22.6 million, which is expected to be recognized over a weighted-average period of 1.8 years.

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(13) Employee Pension Plans

The Company has a defined benefit pension plan and an unfunded supplemental retirement plan. Effective June 1, 2004, all benefit accruals under these plans were frozen; however, the current vested benefit was preserved. The pension disclosure presented below includes aggregated amounts for both of the Company’s plans.

The following table sets forth a summary of the net periodic benefit cost for the three and six months ended June 30, 2019 and 2018:

| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Interest cost | $ | 948 |  | $ | 883 |  | $ | 1,896 |  | $ | 1,766
Expected return on plan assets |  | (1,043) |  |  | (1,077) |  |  | (2,086) |  |  | (2,154)
Amortization of net loss |  | 463 |  |  | 513 |  |  | 926 |  |  | 1,026
Other |  | 225 |  |  | 213 |  |  | 450 |  |  | 426
Net periodic benefit cost | $ | 593 |  | $ | 532 |  | $ | 1,186 |  | $ | 1,064

The Company contributed $2.0 million and $1.4 million to its defined benefit pension plan during each of the six-month periods ended June 30, 2019 and 2018, respectively, and expects to contribute an additional $2.6 million by the end of 2019.

(14) Fair Value Measurements

The fair value hierarchy established by ASC 820, Fair Value Measurement, prioritizes the use of inputs used in valuation techniques into the following three levels:

Level 1 inputs are observable quoted prices in active markets for identical assets or liabilities

Level 2 inputs are observable, either directly or indirectly, but are not Level 1 inputs

Level 3 inputs are unobservable

The following fair value hierarchy table presents the Company’s assets that are measured at fair value on a recurring basis as of June 30, 2019 and December 31, 2018:

|  | As of June 30, 2019 |  | As of December 31, 2018
|  | Fair Value Hierarchy |  |  |  |  | Fair Value Hierarchy |  |  |
(in thousands) |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash and cash equivalents(a) |  | $ | 149,881 |  | $ | — |  | $ | — |  | $ | 149,881 |  | $ | 116,075 |  | $ | — |  | $ | — |  | $ | 116,075
Restricted cash(a) |  |  | 4,742 |  |  | — |  |  | — |  |  | 4,742 |  |  | 3,788 |  |  | — |  |  | — |  |  | 3,788
Restricted investments(b) |  |  | — |  |  | 65,287 |  |  | — |  |  | 65,287 |  |  | — |  |  | 58,142 |  |  | — |  |  | 58,142
Investments in lieu of retainage(c) |  |  | 71,828 |  |  | 1,186 |  |  | — |  |  | 73,014 |  |  | 62,858 |  |  | 1,190 |  |  | — |  |  | 64,048
Total |  | $ | 226,451 |  | $ | 66,473 |  | $ | — |  | $ | 292,924 |  | $ | 182,721 |  | $ | 59,332 |  | $ | — |  | $ | 242,053

(a)Includes money market funds and short-term investments with maturity dates of three months or less when acquired.

(b)Restricted investments, as of June 30, 2019, consist of investments in corporate debt securities of $37.0 million and U.S. government agency securities of $28.3 million with maturities of up to five years, and are valued based on pricing models, which are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets and are therefore classified as Level 2 assets. As of December 31, 2018, restricted investments consisted of investments in corporate debt securities of $30.4 million and U.S. government agency securities of $27.7 million. The amortized cost of these securities at June 30, 2019 and December 31, 2018 was not materially different from the fair value.

(c)Investments in lieu of retainage are included in retainage receivable and as of June 30, 2019 are comprised of money market funds of $71.8 million and municipal bonds of $1.2 million. The fair values of the money market funds are measured using quoted market prices; therefore, they are classified as Level 1 assets. The fair values of municipal bonds are measured using readily available pricing sources for comparable instruments; therefore, they are classified as Level 2 assets. As of December 31, 2018, investments in lieu of retainage consisted of money market funds of $62.9 million and municipal bonds of $1.2 million. The amortized cost of these available-for-sale securities at June 30, 2019 and December 31, 2018 was not materially different from the fair value.

The carrying values of receivables, payables and other amounts arising out of normal contract activities, including retainage, which may be settled beyond one year, are estimated to approximate fair value. Of the Company’s long-term debt, the fair value of the 2017

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Senior Notes was $475.9 million and $466.8 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of the Convertible Notes was $188.5 million and $184.4 million as of June 30, 2019 and December 31, 2018, respectively. The fair values of the 2017 Senior Notes and Convertible Notes were determined using Level 1 inputs, specifically current observable market prices. The reported value of the Company’s remaining borrowings approximates fair value as of June 30, 2019 and December 31, 2018.

(15) Variable Interest Entities (VIEs)

The Company may form joint ventures or partnerships with third parties for the execution of projects. In accordance with ASC 810, Consolidation (“ASC 810”), the Company assesses its partnerships and joint ventures at inception to determine if any meet the qualifications of a VIE. The Company considers a joint venture a VIE if either (a) the total equity investment is not sufficient to permit the entity to finance its activities without additional subordinated financial support, (b) characteristics of a controlling financial interest are missing (either the ability to make decisions through voting or other rights, the obligation to absorb the expected losses of the entity or the right to receive the expected residual returns of the entity), or (c) the voting rights of the equity holders are not proportional to their obligations to absorb the expected losses of the entity and/or their rights to receive the expected residual returns of the entity, and substantially all of the entity’s activities either involve or are conducted on behalf of an investor that has disproportionately few voting rights. Upon the occurrence of certain events outlined in ASC 810, the Company reassesses its initial determination of whether the joint venture is a VIE.

ASC 810 also requires the Company to determine whether it is the primary beneficiary of the VIE. The Company concludes that it is the primary beneficiary and consolidates the VIE if the Company has both (a) the power to direct the economically significant activities of the VIE and (b) the obligation to absorb losses of, or the right to receive benefits from, the VIE that could potentially be significant to the VIE. The Company considers the contractual agreements that define the ownership structure, distribution of profits and losses, risks, responsibilities, indebtedness, voting rights and board representation of the respective parties in determining if the Company is the primary beneficiary. The Company also considers all parties that have direct or implicit variable interests when determining whether it is the primary beneficiary. In accordance with ASC 810, management’s assessment of whether the Company is the primary beneficiary of a VIE is performed continuously.

As of June 30, 2019, the Company had unconsolidated VIE-related current assets and liabilities of $1.9 million and $1.6 million, respectively, included in the Company’s Condensed Consolidated Balance Sheet. As of December 31, 2018, the Company had unconsolidated VIE-related current assets and liabilities of $4.0 million and $3.8 million, respectively, included in the Company’s Condensed Consolidated Balance Sheet. The Company’s maximum exposure to loss as a result of its investments in unconsolidated VIEs is typically limited to the aggregate of the carrying value of the investment and future funding commitments. There were no future funding requirements for the unconsolidated VIEs as of June 30, 2019.

As of June 30, 2019, the Company’s Condensed Consolidated Balance Sheet included current and noncurrent assets of $249.6 million and $56.1 million, respectively, as well as current liabilities of $368.0 million related to the operations of its consolidated VIEs. As of December 31, 2018, the Company’s Condensed Consolidated Balance Sheet included current and noncurrent assets of $173.9 million and $51.5 million, respectively, as well as current liabilities of $319.9 million related to the operations of its consolidated VIEs.

Below is a discussion of some of the Company’s more significant or unique VIEs.

The Company established a joint venture to construct the Purple Line Extension Section 2 (Tunnels and Stations) and Section 3 (Stations) mass-transit projects in Los Angeles, California with a combined value of approximately $2.8 billion. The Company has a 75% interest in the joint venture with the remaining 25% held by O&G Industries, Inc. The joint venture was initially financed with contributions from the partners and, per the terms of the joint venture agreement, the partners may be required to provide additional capital contributions in the future. The Company has determined that this joint venture is a VIE for which the Company is the primary beneficiary.

The Company also established a joint venture with Parsons Corporation (“Parsons”) to construct the Newark Liberty International Airport Terminal One project, a $1.4 billion transportation infrastructure project in Newark, New Jersey. The Company has an 80% interest in the joint venture with the remaining 20% held by Parsons. The joint venture was initially financed with contributions from the partners and, per the terms of the joint venture agreement, the partners may be required to provide additional capital contributions in the future. The Company has determined that this joint venture is a VIE for which the Company is the primary beneficiary.

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(16) Changes in Equity

A reconciliation of the changes in equity for the three and six months ended June 30, 2019 and 2018 is provided below:

| Three Months Ended June 30, 2019
|  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |  |
|  |  |  | Additional |  |  |  |  | Other |  |  |  |  |  |
| Common |  | Paid-in |  | Retained |  | Comprehensive |  | Noncontrolling |  | Total
(in thousands) | Stock |  | Capital |  | Earnings |  | Loss |  | Interests |  | Equity
Balance - March 31, 2019 | $ | 50,180 |  | $ | 1,105,184 |  | $ | 701,325 |  | $ | (44,200) |  | $ | (17,310) |  | $ | 1,795,179
Net income (loss) |  | — |  |  | — |  |  | (320,530) |  |  | — |  |  | 5,091 |  |  | (315,439)
Other comprehensive income (loss) |  | — |  |  | — |  |  | — |  |  | 1,670 |  |  | 157 |  |  | 1,827
Share-based compensation |  | — |  |  | 5,312 |  |  | — |  |  | — |  |  | — |  |  | 5,312
Issuance of common stock, net |  | 99 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 99
Contributions from noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,581 |  |  | 2,581
Balance - June 30, 2019 | $ | 50,279 |  | $ | 1,110,496 |  | $ | 380,795 |  | $ | (42,530) |  | $ | (9,481) |  | $ | 1,489,559

| Six Months Ended June 30, 2019
|  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |  |
|  |  |  | Additional |  |  |  |  | Other |  |  |  |  |  |
| Common |  | Paid-in |  | Retained |  | Comprehensive |  | Noncontrolling |  | Total
(in thousands) | Stock |  | Capital |  | Earnings |  | Loss |  | Interests |  | Equity
Balance - December 31, 2018 | $ | 50,026 |  | $ | 1,102,919 |  | $ | 701,681 |  | $ | (45,449) |  | $ | (21,288) |  | $ | 1,787,889
Net income (loss) |  | — |  |  | — |  |  | (320,886) |  |  | — |  |  | 10,169 |  |  | (310,717)
Other comprehensive income (loss) |  | — |  |  | — |  |  | — |  |  | 2,919 |  |  | 259 |  |  | 3,178
Share-based compensation |  | — |  |  | 10,095 |  |  | — |  |  | — |  |  | — |  |  | 10,095
Issuance of common stock, net |  | 253 |  |  | (2,518) |  |  | — |  |  | — |  |  | — |  |  | (2,265)
Contributions from noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | 5,379 |  |  | 5,379
Distributions to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | (4,000) |  |  | (4,000)
Balance - June 30, 2019 | $ | 50,279 |  | $ | 1,110,496 |  | $ | 380,795 |  | $ | (42,530) |  | $ | (9,481) |  | $ | 1,489,559

| Three Months Ended June 30, 2018
|  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |  |
|  |  |  | Additional |  |  |  |  | Other |  |  |  |  |  |
| Common |  | Paid-in |  | Retained |  | Comprehensive |  | Noncontrolling |  | Total
(in thousands) | Stock |  | Capital |  | Earnings |  | Loss |  | Interests |  | Equity
Balance - March 31, 2018 | $ | 49,913 |  | $ | 1,087,164 |  | $ | 606,121 |  | $ | (43,596) |  | $ | (14,131) |  | $ | 1,685,471
Net income |  | — |  |  | — |  |  | 24,883 |  |  | — |  |  | 3,013 |  |  | 27,896
Other comprehensive loss |  | — |  |  | — |  |  | — |  |  | (1,209) |  |  | — |  |  | (1,209)
Share-based compensation |  | — |  |  | 6,872 |  |  | — |  |  | — |  |  | — |  |  | 6,872
Issuance of common stock, net |  | 98 |  |  | (162) |  |  | — |  |  | — |  |  | — |  |  | (64)
Contributions from noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,000 |  |  | 1,000
Distributions to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | (7,500) |  |  | (7,500)
Balance - June 30, 2018 | $ | 50,011 |  | $ | 1,093,874 |  | $ | 631,004 |  | $ | (44,805) |  | $ | (17,618) |  | $ | 1,712,466

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

| Six Months Ended June 30, 2018
|  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |  |
|  |  |  | Additional |  |  |  |  | Other |  |  |  |  |  |
| Common |  | Paid-in |  | Retained |  | Comprehensive |  | Noncontrolling |  | Total
(in thousands) | Stock |  | Capital |  | Earnings |  | Loss |  | Interests |  | Equity
Balance - December 31, 2017 | $ | 49,781 |  | $ | 1,084,205 |  | $ | 622,007 |  | $ | (42,718) |  | $ | (8,495) |  | $ | 1,704,780
Cumulative effect of accounting change |  | — |  |  | — |  |  | (3,762) |  |  | — |  |  | (1,818) |  |  | (5,580)
Net income |  | — |  |  | — |  |  | 12,759 |  |  | — |  |  | 4,195 |  |  | 16,954
Other comprehensive loss |  | — |  |  | — |  |  | — |  |  | (2,087) |  |  | — |  |  | (2,087)
Share-based compensation |  | — |  |  | 12,271 |  |  | — |  |  | — |  |  | — |  |  | 12,271
Issuance of common stock, net |  | 230 |  |  | (2,602) |  |  | — |  |  | — |  |  | — |  |  | (2,372)
Contributions from noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,000 |  |  | 1,000
Distributions to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | (12,500) |  |  | (12,500)
Balance - June 30, 2018 | $ | 50,011 |  | $ | 1,093,874 |  | $ | 631,004 |  | $ | (44,805) |  | $ | (17,618) |  | $ | 1,712,466

(17) Other Comprehensive Income (Loss)

ASC 220, Comprehensive Income, establishes standards for reporting and displaying comprehensive income and its components in the consolidated financial statements. The Company reports the change in pension benefit plan assets/liabilities, cumulative foreign currency translation and change in fair value of investments as components of accumulated other comprehensive income (loss) (“AOCI”).

The tax effects of the components of other comprehensive income (loss) for the three and six months ended June 30, 2019 and 2018 were as follows:

| Three Months Ended |  | Three Months Ended
| June 30, 2019 |  | June 30, 2018
(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount |  | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined benefit pension plan adjustments | $ | 464 |  | $ | (133) |  | $ | 331 |  | $ | 494 |  | $ | (140) |  | $ | 354
Foreign currency translation adjustments |  | 1,072 |  |  | (262) |  |  | 810 |  |  | (914) |  |  | 280 |  |  | (634)
Unrealized gain (loss) in fair value of investments |  | 867 |  |  | (181) |  |  | 686 |  |  | (1,176) |  |  | 247 |  |  | (929)
Total other comprehensive income (loss) |  | 2,403 |  |  | (576) |  |  | 1,827 |  |  | (1,596) |  |  | 387 |  |  | (1,209)
Less: Other comprehensive income attributable to noncontrolling interests(a) |  | 157 |  |  | — |  |  | 157 |  |  | — |  |  | — |  |  | —
Total other comprehensive income (loss) attributable to Tutor Perini Corporation | $ | 2,246 |  | $ | (576) |  | $ | 1,670 |  | $ | (1,596) |  | $ | 387 |  | $ | (1,209)

(a)The only component of other comprehensive income attributable to noncontrolling interests is foreign currency translation.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

| Six Months Ended |  | Six Months Ended
| June 30, 2019 |  | June 30, 2018
(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount |  | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined benefit pension plan adjustments | $ | 926 |  | $ | (265) |  | $ | 661 |  | $ | 1,026 |  | $ | (291) |  | $ | 735
Foreign currency translation adjustment |  | 1,551 |  |  | (393) |  |  | 1,158 |  |  | (2,553) |  |  | 745 |  |  | (1,808)
Unrealized gain (loss) in fair value of investments |  | 1,725 |  |  | (366) |  |  | 1,359 |  |  | (1,295) |  |  | 281 |  |  | (1,014)
Total other comprehensive income (loss) |  | 4,202 |  |  | (1,024) |  |  | 3,178 |  |  | (2,822) |  |  | 735 |  |  | (2,087)
Less: Other comprehensive income (loss) attributable to noncontrolling interests(a) |  | 259 |  |  | — |  |  | 259 |  |  | — |  |  | — |  |  | —
Total other comprehensive income (loss) attributable to Tutor Perini Corporation | $ | 3,943 |  | $ | (1,024) |  | $ | 2,919 |  | $ | (2,822) |  | $ | 735 |  | $ | (2,087)

(a)The only component of other comprehensive income attributable to noncontrolling interests is foreign currency translation.

The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation during the three and six months ended June 30, 2019 were as follows:

| Three Months Ended June 30, 2019
| Defined |  |  |  | Unrealized |  | Accumulated
| Benefit |  | Foreign |  | Gain (Loss) in |  | Other
| Pension |  | Currency |  | Fair Value of |  | Comprehensive
(in thousands) | Plan |  | Translation |  | Investments, Net |  | Income (Loss)
Attributable to Tutor Perini Corporation: |  |  |  |  |  |  |  |  |  |  |
Balance as of March 31, 2019 | $ | (38,340) |  | $ | (6,069) |  | $ | 209 |  | $ | (44,200)
Other comprehensive income before reclassifications |  | — |  |  | 653 |  |  | 714 |  |  | 1,367
Amounts reclassified from AOCI |  | 331 |  |  | — |  |  | (28) |  |  | 303
Total other comprehensive income |  | 331 |  |  | 653 |  |  | 686 |  |  | 1,670
Balance as of June 30, 2019 | $ | (38,009) |  | $ | (5,416) |  | $ | 895 |  | $ | (42,530)

| Six Months Ended June 30, 2019
| Defined |  |  |  | Unrealized |  | Accumulated
| Benefit |  | Foreign |  | Gain (Loss) in |  | Other
| Pension |  | Currency |  | Fair Value of |  | Comprehensive
(in thousands) | Plan |  | Translation |  | Investments, Net |  | Income (Loss)
Attributable to Tutor Perini Corporation: |  |  |  |  |  |  |  |  |  |  |
Balance as of December 31, 2018 | $ | (38,670) |  | $ | (6,315) |  | $ | (464) |  | $ | (45,449)
Other comprehensive income before reclassifications |  | — |  |  | 899 |  |  | 1,379 |  |  | 2,278
Amounts reclassified from AOCI |  | 661 |  |  | — |  |  | (20) |  |  | 641
Total other comprehensive income |  | 661 |  |  | 899 |  |  | 1,359 |  |  | 2,919
Balance as of June 30, 2019 | $ | (38,009) |  | $ | (5,416) |  | $ | 895 |  | $ | (42,530)

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation during the three and six months ended June 30, 2018 were as follows:

| Three Months Ended June 30, 2018
| Defined |  |  |  | Unrealized |  | Accumulated
| Benefit |  | Foreign |  | Gain (Loss) in |  | Other
| Pension |  | Currency |  | Fair Value of |  | Comprehensive
(in thousands) | Plan |  | Translation |  | Investments, Net |  | Income (Loss)
Attributable to Tutor Perini Corporation: |  |  |  |  |  |  |  |  |  |  |
Balance as of March 31, 2018 | $ | (39,060) |  | $ | (4,765) |  | $ | 229 |  | $ | (43,596)
Other comprehensive loss before reclassifications |  | — |  |  | (634) |  |  | (929) |  |  | (1,563)
Amounts reclassified from AOCI |  | 354 |  |  | — |  |  | — |  |  | 354
Total other comprehensive income (loss) |  | 354 |  |  | (634) |  |  | (929) |  |  | (1,209)
Balance as of June 30, 2018 | $ | (38,706) |  | $ | (5,399) |  | $ | (700) |  | $ | (44,805)

| Six Months Ended June 30, 2018
| Defined |  |  |  | Unrealized |  | Accumulated
| Benefit |  | Foreign |  | Gain (Loss) in |  | Other
| Pension |  | Currency |  | Value of |  | Comprehensive
(in thousands) | Plan |  | Translation |  | Investments, Net |  | Income (Loss)
Attributable to Tutor Perini Corporation: |  |  |  |  |  |  |  |  |  |  |
Balance as of December 31, 2017 | $ | (39,441) |  | $ | (3,591) |  | $ | 314 |  | $ | (42,718)
Other comprehensive loss before reclassifications |  | — |  |  | (1,808) |  |  | (1,014) |  |  | (2,822)
Amounts reclassified from AOCI |  | 735 |  |  | — |  |  | — |  |  | 735
Total other comprehensive income (loss) |  | 735 |  |  | (1,808) |  |  | (1,014) |  |  | (2,087)
Balance as of June 30, 2018 | $ | (38,706) |  | $ | (5,399) |  | $ | (700) |  | $ | (44,805)

(18) Business Segments

The Company offers general contracting, pre-construction planning and comprehensive project management services, including planning and scheduling of manpower, equipment, materials and subcontractors required for the timely completion of a project in accordance with the terms and specifications contained in a construction contract. The Company also offers self-performed construction services: site work, concrete forming and placement, steel erection, electrical, mechanical, plumbing, and HVAC (heating, ventilation and air conditioning). As described below, the Company’s business is conducted through three segments: Civil, Building and Specialty Contractors. These segments are determined based on how the Company’s Chairman and Chief Executive Officer (chief operating decision maker) aggregates business units when evaluating performance and allocating resources.

The Civil segment specializes in public works construction and the replacement and reconstruction of infrastructure. The contracting services provided by the Civil segment include construction and rehabilitation of highways, bridges, tunnels, mass-transit systems, and water management and wastewater treatment facilities.

The Building segment has significant experience providing services for private and public works customers in a number of specialized building markets, including: high-rise residential, hospitality and gaming, transportation, health care, commercial and government offices, sports and entertainment, education, correctional facilities, biotech, pharmaceutical, industrial and technology.

The Specialty Contractors segment specializes in electrical, mechanical, plumbing, HVAC, fire protection systems and pneumatically placed concrete for a full range of civil and building construction projects in the industrial, commercial, hospitality and gaming, and mass-transit end markets. This segment provides the Company with unique strengths and capabilities that allow the Company to position itself as a full-service contractor with greater control over scheduled work, project delivery, and cost and risk management.

To the extent that a contract is co-managed and co-executed among segments, the Company allocates the share of revenues and costs of the contract to each segment to reflect the shared responsibilities in the management and execution of the project.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

UNAUDITED

The following tables set forth certain reportable segment information relating to the Company’s operations for the three and six months ended June 30, 2019 and 2018:

| Reportable Segments |  |  |  |  |  |
|  |  |  |  |  |  | Specialty |  |  |  |  |  |  |  | Consolidated
(in thousands) | Civil |  |  | Building |  | Contractors |  | Total |  | Corporate |  | Total
Three Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ | 541,117 |  | $ | 433,559 |  | $ | 223,299 |  | $ | 1,197,975 |  | $ | — |  | $ | 1,197,975
Elimination of intersegment revenue |  | (67,459) |  |  | (5,241) |  |  | — |  |  | (72,700) |  |  | — |  |  | (72,700)
Revenue from external customers | $ | 473,658 |  | $ | 428,318 |  | $ | 223,299 |  | $ | 1,125,275 |  | $ | — |  | $ | 1,125,275
Income (loss) from construction operations | $ | (164,472) |  | $ | (3,810) |  | $ | (159,795) |  | $ | (328,077) | (a) | $ | (13,640) | (b) | $ | (341,717)
Capital expenditures | $ | 24,439 |  | $ | 150 |  | $ | 110 |  | $ | 24,699 |  | $ | 235 |  | $ | 24,934
Depreciation and amortization(c) | $ | 10,285 |  | $ | 497 |  | $ | 1,061 |  | $ | 11,843 |  | $ | 2,754 |  | $ | 14,597
Three Months Ended June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ | 461,614 |  | $ | 447,975 |  | $ | 270,633 |  | $ | 1,180,222 |  | $ | — |  | $ | 1,180,222
Elimination of intersegment revenue |  | (59,141) |  |  | (996) |  |  | — |  |  | (60,137) |  |  | — |  |  | (60,137)
Revenue from external customers | $ | 402,473 |  | $ | 446,979 |  | $ | 270,633 |  | $ | 1,120,085 |  | $ | — |  | $ | 1,120,085
Income (loss) from construction operations | $ | 49,439 |  | $ | 12,536 |  | $ | 7,454 |  | $ | 69,429 |  | $ | (14,614) | (b) | $ | 54,815
Capital expenditures | $ | 27,352 |  | $ | 592 |  | $ | 215 |  | $ | 28,159 |  | $ | 174 |  | $ | 28,333
Depreciation and amortization(c) | $ | 6,569 |  | $ | 489 |  | $ | 1,106 |  | $ | 8,164 |  | $ | 2,813 |  | $ | 10,977

(a)During the three months ended June 30, 2019, the Company recorded a non-cash goodwill impairment charge of $379.9 million in income (loss) from continuing operations (an unfavorable after-tax impact of $329.5 million, or $6.56 per diluted share) resulting from an interim impairment test the Company performed as of June 1, 2019. (For further information and breakdown of the goodwill impairment charge by segment, see Note 8, Goodwill and Intangible Assets).

(b)Consists primarily of corporate general and administrative expenses.

(c)Depreciation and amortization is included in income (loss) from construction operations.

| Reportable Segments |  |  |  |  |  |
|  |  |  |  |  |  | Specialty |  |  |  |  |  |  |  | Consolidated
(in thousands) | Civil |  |  | Building |  | Contractors |  | Total |  | Corporate |  | Total
Six Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ | 924,739 |  | $ | 869,802 |  | $ | 414,826 |  | $ | 2,209,367 |  | $ | — |  | $ | 2,209,367
Elimination of intersegment revenue |  | (117,587) |  |  | (8,018) |  |  | — |  |  | (125,605) |  |  | — |  |  | (125,605)
Revenue from external customers | $ | 807,152 |  | $ | 861,784 |  | $ | 414,826 |  | $ | 2,083,762 |  | $ | — |  | $ | 2,083,762
Income (loss) from construction operations | $ | (122,727) |  | $ | (677) |  | $ | (167,283) |  | $ | (290,687) | (a) | $ | (28,117) | (b) | $ | (318,804)
Capital expenditures | $ | 38,451 |  | $ | 205 |  | $ | 233 |  | $ | 38,889 |  | $ | 457 |  | $ | 39,346
Depreciation and amortization(c) | $ | 19,655 |  | $ | 1,000 |  | $ | 2,125 |  | $ | 22,780 |  | $ | 5,534 |  | $ | 28,314
Six Months Ended June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ | 787,014 |  | $ | 938,592 |  | $ | 545,434 |  | $ | 2,271,040 |  | $ | — |  | $ | 2,271,040
Elimination of intersegment revenue |  | (121,427) |  |  | (1,372) |  |  | — |  |  | (122,799) |  |  | — |  |  | (122,799)
Revenue from external customers | $ | 665,587 |  | $ | 937,220 |  | $ | 545,434 |  | $ | 2,148,241 |  | $ | — |  | $ | 2,148,241
Income (loss) from construction operations(d) | $ | 52,278 |  | $ | 18,961 |  | $ | 14,689 |  | $ | 85,928 |  | $ | (32,038) | (b) | $ | 53,890
Capital expenditures | $ | 46,548 |  | $ | 870 |  | $ | 634 |  | $ | 48,052 |  | $ | 251 |  | $ | 48,303
Depreciation and amortization(c) | $ | 12,325 |  | $ | 970 |  | $ | 2,218 |  | $ | 15,513 |  | $ | 5,651 |  | $ | 21,164

(a)During the six months ended June 30, 2019, the Company recorded a non-cash goodwill impairment charge of $379.9 million in income (loss) from continuing operations (an unfavorable after-tax impact of $329.5 million, or $6.57 per diluted share) resulting from an interim impairment test the Company performed as of June 1, 2019. (For further information and breakdown of the goodwill impairment charge by segment, see Note 8, Goodwill and Intangible Assets).

(b)Consists primarily of corporate general and administrative expenses.

(c)Depreciation and amortization is included in income (loss) from construction operations.

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UNAUDITED

(d)During the six months ended June 30, 2018, the Company recorded a charge of $17.8 million in income from construction operations (an after-tax impact of $12.8 million, or $0.25 per diluted share), which was primarily non-cash, as a result of the unexpected outcome of an arbitration decision related to a subcontract back charge dispute on a Civil segment project in New York that was completed in 2013.

A reconciliation of segment results to the consolidated income (loss) before income taxes is as follows:

| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Income (loss) from construction operations | $ | (341,717) |  | $ | 54,815 |  | $ | (318,804) |  | $ | 53,890
Other income, net |  | 900 |  |  | 1,050 |  |  | 1,322 |  |  | 1,830
Interest expense |  | (17,522) |  |  | (15,998) |  |  | (33,947) |  |  | (31,063)
Income (loss) before income taxes | $ | (358,339) |  | $ | 39,867 |  | $ | (351,429) |  | $ | 24,657

Total assets by segment were as follows:

| As of |  | As of
(in thousands) | June 30, 2019 |  | December 31, 2018
Civil | $ | 2,545,572 |  | $ | 2,574,326
Building |  | 961,287 |  |  | 913,746
Specialty Contractors |  | 607,008 |  |  | 745,313
Corporate and other(a) |  | 299,629 |  |  | 154,367
Total assets | $ | 4,413,496 |  | $ | 4,387,752

(a)Consists principally of cash, equipment, tax-related assets and insurance-related assets, offset by the elimination of assets related to intersegment revenue.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discusses our financial position as of June 30, 2019 and the results of our operations for the three and six months ended June 30, 2019 and should be read in conjunction with other information, including the unaudited Condensed Consolidated Financial Statements and notes included in Part 1, Item 1, Financial Information, of this Quarterly Report on Form 10-Q, the audited consolidated financial statements and accompanying notes to our Annual Report on Form 10-K for the year ended December 31, 2018, and the information contained under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2018 and in our Quarterly Reports.

Forward-Looking Statements

This Quarterly Report on Form 10-Q, including the “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” contains forward-looking statements regarding future events and our future results, which are intended to be covered by the safe harbor provision for forward-looking statements provided by the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical facts are statements that could be deemed forward-looking statements. Words such as “achieve,” “anticipate,” “assumes,” “believes,” “continue,” “could,” “estimate,” “expects,” “forecast,” “hope,” “intend,” “may,” “plan,” “potential,” “predict,” “should,” “will,” “would,” variations of such words and similar expressions are intended to identify such forward-looking statements. In addition, any statements that refer to projections of our future financial performance, our anticipated growth and trends in our businesses, and other characterizations of future events or circumstances are forward-looking statements. Although such statements are based on currently available financial and economic data as well as management’s estimates and expectations, forward-looking statements are inherently uncertain and involve risks and uncertainties that could cause our actual results to differ materially from what may be inferred from the forward-looking statements. Therefore, actual results may differ materially and adversely from those expressed in any forward-looking statements. Factors potentially contributing to such differences include, among others:

Revisions of estimates of contract risks, revenue or costs; the timing of new awards; or the pace of project execution may result in losses or lower than anticipated profit;

Unfavorable outcomes of existing or future litigation or dispute resolution proceedings against clients (project owners, developers, general contractors, etc.), subcontractors or suppliers, as well as failure to promptly recover significant working capital invested in projects subject to such matters;

The requirement to perform extra, or change order, work resulting in disputes or claims or adversely affecting our working capital, profits and cash flows;

A significant slowdown or decline in economic conditions;

Risks and other uncertainties associated with assumptions and estimates used to prepare financial statements;

Impairment of our goodwill or other indefinite-lived intangible assets;

Inability to retain key members of our management, to hire and retain personnel required to complete projects or implement succession plans for key officers;

Failure to meet our obligations under our debt agreements;

Failure to meet contractual schedule requirements, which could result in higher costs and reduced profits or, in some cases, exposure to financial liability for liquidated damages and/or damages to customers;

Failure of our joint venture partners to perform their venture obligations, which could impose additional financial and performance obligations on us, resulting in reduced profits or losses;

Increased competition and failure to secure new contracts;

Client cancellations of, or reductions in scope under, contracts reported in our backlog;

Decreases in the level of government spending for infrastructure and other public projects;

Possible systems and information technology interruptions, including due to cyberattack, systems failures or other similar events;

The impact of inclement weather conditions on projects;

Failure to comply with laws and regulations related to government contracts;

Uncertainty from the expected discontinuance of London Interbank Offered Rate and transition to any other interest rate benchmark;

Conversion of our outstanding Convertible Notes that could dilute ownership interests of existing stockholders and could adversely affect the market price of our common stock;

Potential dilutive impact of our Convertible Notes in our diluted earnings per share calculation; and

Economic, political and other risks, including civil unrest, security issues, labor conditions, corruption and other unforeseeable events in countries where we do business, resulting in unanticipated losses.

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Executive Overview

Consolidated revenue for the three and six months ended June 30, 2019 was $1.1 billion and $2.1 billion, respectively, consistent with revenue for the same periods in 2018. The loss from construction operations for the three and six months ended June 30, 2019 was $341.7 million and $318.8 million, respectively, driven by the $379.9 million pre-tax non-cash goodwill impairment charge. See Note 8 of the Notes to Condensed Consolidated Financial Statements for a detailed discussion of the goodwill impairment charge. This non-cash charge does not impact the Company’s overall business operations, including the pursuit of new work. Adjusted income from construction operations for the three and six months ended June 30, 2019, which is a non-GAAP financial measure and excludes the non-cash goodwill impairment charge (and the associated tax benefit), was $38.2 million and $61.1 million, respectively, compared to $54.8 million and $53.9 million for the same periods in 2018. For a discussion of non-GAAP financial measures, including a reconciliation of non-GAAP financial measures to the most nearly comparable GAAP financial measures, see Non-GAAP Financial Measures below. The decrease for the second quarter of 2019 was principally due to unfavorable adjustments in the current-year period on certain electrical and mechanical projects in New York, none of which were individually material, as well as the absence of a prior-year immaterial favorable adjustment on a highway project in New York. The increase for the six-month period was primarily due to the absence of a prior-year pre-tax charge totaling $17.8 million, which was attributable to the unexpected outcome of an arbitration decision on a completed Civil segment project in New York, as well as improved contributions from several Civil and Building segment projects that are early in the project lifecycle, including an airport project in New Jersey. The increase was partially offset by unfavorable adjustments on the aforementioned and other electrical and mechanical projects in New York totaling $20.0 million, none of which were individually material, and the absence of the above-mentioned prior-year favorable adjustment on a highway project in New York. In addition, during both current-year periods, the Company’s results were impacted by lower than anticipated contributions from certain projects that have experienced execution delays, but which are expected to advance more meaningfully in the second half of 2019 and in 2020.

An income tax benefit of $42.9 million and $40.7 million was recognized f or the three and six months ended June 30, 2019, respectively, reflecting effective tax rates of 12.0% and 11.6% compared to income tax expense of $12.0 million and $7.7 million and effective tax rates of 30.0% and 31.2%, respectively, for the comparable periods in 2018. A tax benefit totaling $50.4 million was recognized during the three months ended June 30, 2019 related to the goodwill impairment charge. The adjusted effective income tax rates for the three and six months ended June 30, 2019, which exclude the tax benefit from the goodwill impairment charge and which are non-GAAP financial measures, were 34.7% and 34.0%, respectively. See Corporate, Tax and Other Matters below for a discussion of the changes in the effective tax rates.

The loss per share for the three and six months ended June 30, 2019 was $6.38 and $6.40, respectively, compared to diluted earnings per share of $0.49 and $0.25, respectively, for the same periods in 2018. Adjusted diluted earnings per common share, which is a non-GAAP financial measure and excludes the goodwill impairment charge (and the associated tax benefit) for the three and six months ended June 30, 2019 was $0.18 and $0.17, respectively. The reduction in earnings per share was primarily due to the factors discussed above.

Consolidated new awards for the three and six months ended June 30, 2019 totaled $0.9 billion and $4.2 billion, respectively, compared to $1.3 billion and $3.6 billion for the same periods in 2018. The Specialty Contractors and Building segments were the primary contributors to the new award activity in the second quarter of 2019, whereas the new awards in the Civil and Building segments were most prominent in the first half of 2019.

Consolidated backlog as of June 30, 2019 was a near-record $11.4 billion, an increase of 22% compared to $9.3 billion at December 31, 2018 and up 31% compared to $8.7 billion at June 30, 2018. The backlog growth was attributable to a large volume of new awards across all segments, including the $1.4 billion Purple Line Section 3 Stations project in California (which includes $216 million of electrical and mechanical work to be performed by the Specialty Contractors segment), the Choctaw Casino and Resort project in Oklahoma, a large hospitality and gaming project in California, the $253 million Culver Line Communications-Based Train Control project in New York, a technology campus tenant improvement project worth over $200 million in California and the $200 million Southland Gaming Casino and Hotel project in Arkansas. As of June 30, 2019, the mix of backlog by segment was approximately 55% for Civil, 25% for Building and 20% for Specialty Contractors.

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The following table presents the Company’s backlog by business segment, reflecting changes from December 31, 2018 to June 30, 2019:

| Backlog at |  | New |  | Revenue |  | Backlog at
(in millions) | December 31, 2018 |  | Awards(a) |  | Recognized |  | June 30, 2019(b)
Civil | $ | 5,141.9 |  | $ | 1,846.8 |  | $ | (807.2) |  | $ | 6,181.5
Building |  | 2,333.1 |  |  | 1,397.0 |  |  | (861.8) |  |  | 2,868.3
Specialty Contractors |  | 1,821.7 |  |  | 918.0 |  |  | (414.8) |  |  | 2,324.9
Total | $ | 9,296.7 |  | $ | 4,161.8 |  | $ | (2,083.8) |  | $ | 11,374.7

(a)New awards consist of the original contract price of projects added to backlog plus or minus subsequent changes to the estimated total contract price of existing contracts.

(b)Backlog may differ from the transaction prices allocated to the remaining performance obligations as disclosed in Note 3 of the Notes to Condensed Consolidated Financial Statements. Such differences relate to the timing of executing a formal contract or receiving a notice to proceed. More specifically, backlog sometimes may include awards for which a contract has not yet been executed or a notice to proceed has not been issued, but for which there are no remaining major uncertainties that the project will proceed (e.g., adequate funding is in place).

The outlook for the Company’s growth over the next several years remains favorable, particularly in the Civil and Specialty Contractors segments, although the pace of growth could continue to be moderated by project delays or the timing of project commencements, ramp-up activities and completions. We anticipate that we will continue to win our share of significant new awards resulting from long-term capital spending plans by state, local and federal customers, as well as bipartisan support for infrastructure investments and limited competition for some of the largest project opportunities. In recent years, voters in numerous states approved dozens of long-term transportation funding measures totaling approximately $200 billion in long-term funding. The largest of these were in Los Angeles County, where Measure M, a half-cent sales tax increase, was approved and is expected to generate $120 billion of funding over 40 years and in Seattle, Washington, where Sound Transit 3 was passed and is expected to generate $54 billion of funding over 25 years. In addition, the Trump Administration and various congressional leaders continue to propose a significant federal infrastructure investment program, which most recently has been estimated at approximately $2 trillion. Furthermore, several large, long-duration civil infrastructure programs with which we are already involved are progressing, such as the Purple Line Extension projects in Los Angeles. Finally, while interest rates have climbed modestly from their historical low levels, they remain relatively low and generally favorable to sustain continued demand and spending by customers.

For a more detailed discussion of operating performance of each business segment, corporate general and administrative expense and other items, see Results of Segment Operations, Corporate, Tax and Other Matters and Liquidity and Capital Resources below.

Non-GAAP Financial Measures

To supplement our unaudited condensed consolidated financial statements presented under generally accepted accounting principles in the United States (“GAAP”), we are presenting certain non-GAAP financial measures. We are providing these non-GAAP financial measures to disclose additional information to facilitate the comparison of past and present operations, and they are among the indicators management uses as a basis for evaluating the Company’s financial performance as well as for forecasting future periods. We believe that these non-GAAP financial measures, when considered together with our GAAP financial results, provide management and investors with an additional understanding of our business operating results, including underlying trends.

These non-GAAP financial measures, which exclude the non-cash goodwill impairment charge incurred in the second quarter of 2019 (and the tax benefit associated with that charge), include adjusted income (loss) from construction operations, adjusted net income attributable to Tutor Perini Corporation, adjusted diluted earnings per common share and adjusted effective income tax rate. We also reference adjusted operating margin for each segment, which is a non-GAAP financial measure that we define as adjusted income (loss) from construction operations as a percentage of consolidated revenue. These non-GAAP financial measures are not intended to replace the presentation of our financial results in accordance with GAAP, and they may not be comparable to other similarly titled non-GAAP financial measures presented by other companies. Reconciliations of these non-GAAP financial measures to the most nearly comparable GAAP financial measures are presented below.

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Reconciliation of Non-GAAP Financial Measures
|  |  |  |  |  |  | Specialty |  |  |  |  | Consolidated
(in millions) | Civil |  |  | Building |  | Contractors |  | Corporate |  | Total
Three Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from construction operations, as reported | $ | (164.5) |  | $ | (3.8) |  | $ | (159.8) |  | $ | (13.6) |  | $ | (341.7)
Plus: Goodwill impairment charge |  | 210.2 |  |  | 13.5 |  |  | 156.2 |  |  | — |  |  | 379.9
Adjusted income (loss) from construction operations | $ | 45.7 |  | $ | 9.7 |  | $ | (3.6) |  | $ | (13.6) |  | $ | 38.2
Six Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from construction operations, as reported | $ | (122.7) |  | $ | (0.7) |  | $ | (167.3) |  | $ | (28.1) |  | $ | (318.8)
Plus: Goodwill impairment charge |  | 210.2 |  |  | 13.5 |  |  | 156.2 |  |  | — |  |  | 379.9
Adjusted income (loss) from construction operations | $ | 87.5 |  | $ | 12.8 |  | $ | (11.1) |  | $ | (28.1) |  | $ | 61.1

| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
(in millions, except per common share amounts and percentages) | 2019 |  | 2018 |  | 2019 |  | 2018
Net income (loss) attributable to Tutor Perini Corporation, as reported | $ | (320.5) |  | $ | 24.9 |  |  | $ | (320.9) |  | $ | 12.8 |
Plus: Goodwill impairment charge |  | 379.9 |  |  | — |  |  |  | 379.9 |  |  | — |
Less: Tax benefit provided on goodwill impairment charge |  | (50.4) |  |  | — |  |  |  | (50.4) |  |  | — |
Adjusted net income attributable to Tutor Perini Corporation | $ | 9.0 |  | $ | 24.9 |  |  | $ | 8.6 |  | $ | 12.8 |
Diluted earnings (loss) per common share, as reported | $ | (6.38) |  | $ | 0.49 |  |  | $ | (6.40) |  | $ | 0.25 |
Plus: Goodwill impairment charge |  | 7.56 |  |  | — |  |  |  | 7.57 |  |  | — |
Less: Tax benefit provided on goodwill impairment charge |  | (1.00) |  |  | — |  |  |  | (1.00) |  |  | — |
Adjusted diluted earnings per common share | $ | 0.18 |  | $ | 0.49 |  |  | $ | 0.17 |  | $ | 0.25 |
Effective income tax rate, as reported |  | (12.0) | % |  | 30.0 | % |  |  | (11.6) | % |  | 31.2 | %
Tax effect of goodwill impairment charge |  | 46.7 | % |  | — | % |  |  | 45.6 | % |  | — | %
Adjusted effective income tax rate |  | 34.7 | % |  | 30.0 | % |  |  | 34.0 | % |  | 31.2 | %

Results of Segment Operations

The results of our Civil, Building and Specialty Contractors segments are discussed below.

Civil Segment

Revenue, income (loss) from construction operations and adjusted income from construction operations for the Civil segment are summarized as follows:

| Three Months Ended June 30, |  | Six Months Ended June 30,
(in millions) | 2019 |  | 2018 |  | 2019 |  | 2018
Revenue | $ | 473.7 |  | $ | 402.5 |  | $ | 807.2 |  | $ | 665.6
Income (loss) from construction operations, as reported |  | (164.5) |  |  | 49.4 |  |  | (122.7) |  |  | 52.3
Plus: Goodwill impairment charge |  | 210.2 |  |  | — |  |  | 210.2 |  |  | —
Adjusted income from construction operations | $ | 45.7 |  | $ | 49.4 |  | $ | 87.5 |  | $ | 52.3

Revenue for the three and six months ended June 30, 2019 increased 18% and 21% compared to the same periods in 2018. The growth for both periods was principally driven by increased project execution activities on a mass-transit project in the Midwest, a highway project in Maryland and an airport project in New Jersey. For the six-month period, the increase was also due to increased activity on a tunnel project in British Columbia.

Income from construction operations for the three and six months ended June 30, 2019 decreased 433% and 335% compared to the same periods in 2018 principally due to the goodwill impairment charge in the second quarter. Adjusted income from construction operations for the three and six months ended June 30, 2019 decreased 7% and increased 67% compared to the same periods in 2018. The decrease for the current-year second quarter was principally due to the absence of a prior-year immaterial favorable adjustment on a highway project in New York. The increase for the six-month period of 2019 was primarily due to the absence of the prior-year pre-

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tax charge totaling $17.8 million mentioned above in the Executive Overview, and improved contributions from several projects in the segment that are early in the project lifecycle, including an airport project in New Jersey. The increase was partially offset by the absence of the prior-year favorable adjustment on a highway project in New York, also mentioned in the Executive Overview.

Operating margin was (34.7)% and (15.2)% and adjusted operating margin was 9.6% and 10.8% for the three and six months ended June 30, 2019, respectively, compared to 12.3% and 7.9% for the same periods in 2018. The reduction in operating margin was driven by the second quarter goodwill impairment charge. The changes to adjusted operating margin for both periods were primarily driven by the factors mentioned above that drove the changes in adjusted income from construction operations.

New awards in the Civil segment totaled $149 million and $1.8 billion for the three and six months ended June 30, 2019 compared to $664 million and $1.3 billion, respectively, for the same periods in 2018. New awards in the second quarter of 2019 included a $122 million wastewater treatment project in Guam and various other smaller projects, the combined value of which was offset by $216 million of electrical and mechanical work subcontracted to the Specialty Contractors segment.

Backlog for the Civil segment was $6.2 billion as of June 30, 2019, up 30% compared to $4.7 billion as of June 30, 2018. The increase was driven primarily by the award in the first quarter of 2019 of the $1.4 billion Purple Line Section 3 Stations project in California. The segment continues to experience strong demand reflected in a large, multi-year pipeline of prospective projects, substantial anticipated funding from various voter-approved transportation measures and public agencies’ long-term spending plans. The Civil segment is well-positioned to continue capturing its share of these prospective projects.

Building Segment

Revenue, income (loss) from construction operations and adjusted income from construction operations for the Building segment are summarized as follows:

| Three Months Ended June 30, |  | Six Months Ended June 30,
(in millions) | 2019 |  | 2018 |  | 2019 |  | 2018
Revenue | $ | 428.3 |  | $ | 447.0 |  | $ | 861.8 |  | $ | 937.2
Income (loss) from construction operations, as reported |  | (3.8) |  |  | 12.5 |  |  | (0.7) |  |  | 19.0
Plus: Goodwill impairment charge |  | 13.5 |  |  | — |  |  | 13.5 |  |  | —
Adjusted income from construction operations | $ | 9.7 |  | $ | 12.5 |  | $ | 12.8 |  | $ | 19.0

Revenue for the three and six months ended June 30, 2019 decreased 4% and 8%, respectively, compared to the same periods in 2018. The decrease for the three-month period was primarily due to reduced project execution activities on certain projects in California that are complete or nearing completion, partially offset by increased activity on a newer large technology project in California and an airport project in New Jersey. The decrease for the six-month period was primarily due to the completion of two large technology projects in California, partially offset by greater volume for the newer technology project in California.

Income from construction operations for the three and six months ended June 30, 2019 decreased 130% and 104% compared to the same periods in 2018 primarily due to the goodwill impairment charge in the second quarter. Adjusted income from construction operations for the three and six months ended June 30, 2019 decreased 22% and 33%, respectively, compared to the same periods in 2018. For both periods, the decrease was primarily due to the absence of prior-year favorable closeout adjustments on certain projects in California and Texas, partially offset by positive contributions from the above-mentioned airport project in New Jersey.

Operating margin was (0.9)% and (0.1)% and adjusted operating margin was 2.3% and 1.5% for the three and six months ended June 30, 2019, respectively, compared to 2.8% and 2.0% for the same periods in 2018. The reduction in operating margin was driven by the second quarter goodwill impairment charge. The changes to adjusted operating margin for both periods were primarily driven by the factors mentioned above that drove the changes in adjusted income from construction operations.

New awards in the Building segment totaled $328 million and $1.4 billion for the three and six months ended June 30, 2019, respectively, compared to $296 million and $1.3 billion for the same periods in 2018. New awards in the second quarter of 2019 included a technology campus tenant improvement project in California valued at more than $200 million.

Backlog for the Building segment was $2.9 billion as of June 30, 2019, up 38% compared to $2.1 billion as of June 30, 2018. The increase was driven by the awards in the first quarter of 2019 of the Choctaw Casino and Resort project in Oklahoma, a large hospitality and gaming project in California and the $200 million Southland Gaming Casino and Hotel project in Arkansas, as well as the above-mentioned technology campus tenant improvement project in California awarded in the second quarter of 2019. The Building segment continues to have a large volume of prospective projects, some of which have already been bid and are expected to be selected and awarded by customers in 2019. Strong demand is expected to continue due to ongoing customer spending supported by a still favorable interest rate environment.

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Specialty Contractors Segment

Revenue, income (loss) from construction operations and adjusted income (loss) from construction operations for the Specialty Contractors segment are summarized as follows:

| Three Months Ended June 30, |  | Six Months Ended June 30,
(in millions) | 2019 |  | 2018 |  | 2019 |  | 2018
Revenue | $ | 223.3 |  | $ | 270.6 |  | $ | 414.8 |  | $ | 545.4
Income (loss) from construction operations, as reported |  | (159.8) |  |  | 7.5 |  |  | (167.3) |  |  | 14.7
Plus: Goodwill impairment charge |  | 156.2 |  |  | — |  |  | 156.2 |  |  | —
Adjusted income (loss) from construction operations | $ | (3.6) |  | $ | 7.5 |  | $ | (11.1) |  | $ | 14.7

Revenue for the three and six months ended June 30, 2019 decreased 17% and 24%, respectively, compared to the same periods in 2018. The decrease for both periods was primarily due to reduced project execution activities on certain electrical and mechanical projects in California, Washington and New York that are complete or nearing completion.

Loss from construction operations was $159.8 million and $167.3 million for the three and six months ended June 30, 2019, respectively, compared to income from construction operations of $7.5 million and $14.7 million during the three and six months ended June 30, 2018, respectively. The decrease was mostly due to the aforementioned goodwill impairment charge incurred in the second quarter of 2019. Excluding the impact of the goodwill impairment charge, the Company reported a profit reduction, recognizing adjusted losses from construction operations of $3.6 million and $11.1 million for the three and six months ended June 30, 2019, respectively, compared to adjusted income from construction operations of $7.5 million and $14.7 million for the corresponding periods in 2018. The decrease for the second quarter was principally due to unfavorable adjustments on certain electrical and mechanical projects in New York, none of which were material individually or in the aggregate. The decrease for the six-month period was primarily due to unfavorable adjustments totaling $20.0 million on the above-mentioned projects and on certain other electrical and mechanical projects in New York, none of which were individually material.

Operating margin was (71.6)% and (40.3)% and adjusted operating margin was (1.6)% and (2.7)% for the three and six months ended June 30, 2019, respectively, compared to 2.8% and 2.7% for the same periods in 2018. The reduction in operating margin was driven by the second quarter goodwill impairment charge. The changes to adjusted operating margin for both periods were primarily driven by the factors mentioned above that drove the changes in adjusted income (loss) from construction operations.

New awards in the Specialty Contractors segment totaled $439 million and $918 million for the three and six months ended June 30, 2019 compared to $374 million and $950 million, respectively, for the same periods in 2018. New awards in the second quarter of 2019 included $216 million of electrical and mechanical subcontracts for the Purple Line Section 3 Stations project in California, as well as $83 million and $71 million of mechanical and electrical projects in New York, respectively.

Backlog for the segment was $2.3 billion as of June 30, 2019, up 24% compared to $1.9 billion as of June 30, 2018, driven by the new awards mentioned above. Many of the segment’s new awards over the last year have notably higher margins than in the past due, in some cases, to limited competition. The segment continues to have a substantial volume of prospective projects with demand increasing because of strong public and private sector spending on civil and building projects. The Specialty Contractors segment is increasingly focused on servicing the Company’s growing backlog of large Civil and Building segment projects, but remains well-positioned to capture its share of new projects for external customers, leveraging the size and scale of our business units that operate in New York, Texas, Florida and California and the strong reputation held by these business units for high-quality work on large, complex projects.

Corporate, Tax and Other Matters

Corporate General and Administrative Expenses

Corporate general and administrative expenses were $13.6 million and $28.4 million during the three and six months ended June 30, 2019, respectively, compared to $14.4 million and $31.8 million during the three and six months ended June 30, 2018, respectively. The decreases in the 2019 periods were primarily due to lower compensation-related expenses.

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Other Income, Net, Interest Expense and Income Tax Benefit (Expense)

|  | Three Months Ended June 30, |  | Six Months Ended June 30,
(in millions) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Other income, net |  | $ | 0.9 |  | $ | 1.1 |  | $ | 1.3 |  | $ | 1.8
Interest expense |  |  | (17.5) |  |  | (16.0) |  |  | (33.9) |  |  | (31.1)
Income tax benefit (expense) |  |  | 42.9 |  |  | (12.0) |  |  | 40.7 |  |  | (7.7)

Interest expense increased $1.5 million and $2.8 million for the three and six months ended June 30, 2019, respectively, compared to the same periods in 2018. The increases in the 2019 periods were primarily due to higher average balances and interest rates on our line of credit.

The Company recognized a tax benefit of $42.9 million on a loss before income taxes of $358.3 million for the three months ended June 30, 2019. The effective income tax rate for the three and six months ended June 30, 2019 was 12.0% and 11.6%, respectively, compared to 30.0% and 31.2% for the same periods in 2018. The lower rates in the 2019 period primarily resulted from the $379.9 million goodwill impairment charge discussed above of which approximately $209.5 million is not deductible for income tax purposes. The Company recognized a tax benefit totaling $50.4 million as a result of the impairment charge. For a further discussion of income taxes, refer to Note 7 of the Notes to Condensed Consolidated Financial Statements.

Liquidity and Capital Resources

Liquidity is provided by available cash and cash equivalents, cash generated from operations, credit facilities and access to capital markets. We have a committed line of credit totaling $350 million, which may be used for revolving loans, letters of credit and/or general purposes. We believe that cash generated from operations, including substantial amounts anticipated in the remainder of 2019, and along with our unused credit capacity of $115 million and cash position, will be sufficient to fund any working capital needs for the next 12 months.

Cash and Working Capital

Cash and cash equivalents were $149.9 million as of June 30, 2019 compared to $116.1 million as of December 31, 2018. Cash immediately available for general corporate purposes was $64.7 million and $51.7 million as of June 30, 2019 and December 31, 2018, respectively, with the remainder being our proportionate share of cash held by our unconsolidated joint ventures and also amounts held by our consolidated joint ventures, which in both cases were available only for joint venture-related uses, including distributions to joint venture partners. In addition, our restricted cash and restricted investments, held primarily to secure insurance-related contingent obligations, totaled $70.0 million as of June 30, 2019 compared to $61.9 million as of December 31, 2018.

During the six months ended June 30, 2019, net cash used in operating activities wa s $111.5 million (with a positive operating cash flow in the second quarter) due primarily to investments in project working capital that exceeded cash generated from earnings sources. The change in working capital primarily reflects an increase in accounts receivable due to timing of collections. During the six months ended June 30, 2018, net cash used in operating activities was $62.4 million due primarily to investments in project working capital that exceeded cash generated from earnings sources. The change in project working capital primarily reflected an increase in costs and estimated earnings in excess of billings and a decrease in accounts payable primarily due to timing of payments to vendors and subcontractors, partially offset by an increase in billings in excess of costs and estimated earnings and a decrease in retainage receivable.

The change resulting from the comparison of cash used in operating activities for the six months ended June 30, 2019 with the cash flow for the comparable period in 2018 is an increase in cash used of $49.1 million in the 2019 period which primarily reflects unfavorable timing of collections of accounts receivable, partially offset by favorable timing of payments to vendors and subcontractors impacting accounts payable.

The cash used for investing activities during the first six months of 2019 and 2018 was $41.2 million and $44.8 million, respectively, due primarily to the acquisition of property and equipment for projects.

For the first six months of 2019, net cash provided by financing activities was $187.5 million, which was primarily due to increased net borrowings of $189.0 million. Net cash provided by financing activities for the comparable period in 2018 was $51.5 million, which was primarily due to increased net borrowings of $81.4 million, partially offset by a $16.0 million earn-out payment related to an acquisition in a prior year and $12.5 million of cash distributions to noncontrolling interests.

At June 30, 2019, we had working capital of $1.8 billion, a ratio of current assets to current liabilities of 2.03 and a ratio of debt to equity of 0.64, compared to working capital of $1.6 billion, a ratio of current assets to current liabilities of 1.99 and a ratio of debt to

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equity of 0.43 at December 31, 2018.

Debt

Summarized below are the key terms of the 2017 Credit Facility as of June 30, 2019. For additional information regarding our outstanding debt, refer to Note 9 of the Notes to Condensed Consolidated Financial Statements.

2017 Credit Facility

On April 20, 2017, we entered into a credit agreement (the “2017 Credit Facility”) with SunTrust Bank as Administrative Agent, Swing Line Lender and L/C Issuer and a syndicate of other lenders. The 2017 Credit Facility provides for a $350 million revolving credit facility (the “2017 Revolver”) and a sublimit for the issuance of letters of credit and swingline loans up to the aggregate amount of $150 million and $10 million, respectively, both maturing on April 20, 2022 unless any of the Convertible Notes are outstanding on December 17, 2020, in which case all such borrowings will mature on December 17, 2020 (subject to certain further exceptions). In addition, the 2017 Credit Facility permits additional borrowings in an aggregate amount of $150 million, which can be in the form of increased capacity on the 2017 Revolver or the establishment of one or more term loans. On May 7, 2019, certain provisions of the 2017 Credit Facility were amended, including, among other things, setting the maximum leverage ratio at 3.50:1.00 for the remainder of its term, thus eliminating the step down from 3.50:1.00 to 3.25:1.00. For additional information regarding the terms of our 2017 Credit Facility, refer to Note 9 of the Notes to Condensed Consolidated Financial Statements.

The table below presents our actual and required consolidated fixed charge coverage ratio and consolidated leverage ratio under the 2017 Credit Facility for the period, which are calculated on a rolling four-quarter basis:

|  | Twelve Months Ended June 30, 2019
|  | Actual |  | Required
Fixed charge coverage ratio |  | 3.18 to 1.00 |  | > or = 1.25 : 1.00
Leverage ratio |  | 3.07 to 1.00 |  | < or = 3.50 : 1.00

As of June 30, 2019, we were in compliance and expect to continue to be in compliance with the covenants under the 2017 Credit Facility.

Contractual Obligations

There have been no material changes in our contractual obligations from those described in our Annual Report on Form 10-K for the year ended December 31, 2018.

Off-Balance Sheet Arrangements

None.

Critical Accounting Policies

Our significant accounting policies are described in Note 1 of the Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2018. Our critical accounting policies are also identified and discussed in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2018. See Note 8 of the Notes to Condensed Consolidated Financial Statements for a detailed discussion of our accounting policies related to goodwill.

Recently Issued Accounting Pronouncements

See Note 2 of the Notes to Condensed Consolidated Financial Statements.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

There has been no material change in our exposure to market risk from that described in Item 7A of our Annual Report on Form 10-K for the year ended December 31, 2018.

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Item 4. Controls and Procedures

Disclosure Controls and Procedures

An evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as defined by Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (“Exchange Act”), as of the end of the period covered by this Quarterly Report on Form 10-Q was made under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures (a) were effective to ensure that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms and (b) include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in reports filed or submitted under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting during the period covered by this report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. – OTHER INFORMATION

Item 1. Legal Proceedings

In the ordinary course of our business, we are involved in various legal proceedings. We disclose information about certain pending legal proceedings pursuant to SEC rules and as we otherwise determine to be appropriate. For information on such pending matters, see Part I, Item 3 of our Annual Report on Form 10-K for the year ended December 31, 2018, updated by Note 11 of the Notes to Condensed Consolidated Financial Statements included in this Quarterly Report on Form 10-Q.

Item 1A. Risk Factors

There have been no material changes to our risk factors as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2018.

Item 4. Mine Safety Disclosures

Section 1503 of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”) requires domestic mine operators to disclose violations and orders issued under the Federal Mine Safety and Health Act of 1977 (the “Mine Act”) by the federal Mine Safety and Health Administration. We do not act as the owner of any mines but we may act as a mining operator as defined under the Mine Act where we may be an independent contractor performing services or construction of such mine.

Information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Act and Item 104 Regulation S-K is included in Exhibit 95.

Item 5. Other Information

None.

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Item 6. Exhibits

Exhibits | Description
31.1 | Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2 | Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1 | Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2 | Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
95 | Mine Safety Disclosure.
101.INS | XBRL Instance Document – The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH | XBRL Taxonomy Extension Schema Document.
101.CAL | XBRL Taxonomy Extension Calculation Linkbase Document.
101.LAB | XBRL Taxonomy Extension Label Linkbase Document.
101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document.
101.DEF | XBRL Taxonomy Extension Definition Linkbase Document.
104 | The cover page from the Company’s Quarterly Report on Form 10-Q for quarter ended June 30, 2019, formatted in Inline XBRL.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| Tutor Perini Corporation
Dated: August 8, 2019 | By: | /s/ Gary G. Smalley
| Gary G. Smalley
| Executive Vice President and Chief Financial Officer

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