XML 44 R28.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Employee Benefit Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Employee Benefit Plans [Abstract] |
Summary of Net Periodic Benefit Cost |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | Year Ended December 31,
﻿(in thousands) | 2017 |  |  | 2016 |  |  | 2015 |
﻿Interest cost | $ | 3,919 |  |  | $ | 4,153 |  |  | $ | 4,055 |
﻿Service cost |  | 850 |  |  |  | 600 |  |  |  | — |
﻿Expected return on plan assets |  | (4,358) |  |  |  | (4,803) |  |  |  | (5,021) |
﻿Recognized net actuarial losses |  | 1,897 |  |  |  | 1,745 |  |  |  | 1,869 |
﻿Net periodic benefit cost | $ | 2,308 |  |  | $ | 1,695 |  |  | $ | 903 |
﻿Actuarial assumptions used to determine net cost: |  |  |  |  |  |  |  |  |  |  |
﻿Discount rate |  | 3.90 | % |  |  | 4.10 | % |  |  | 3.75 | %
﻿Expected return on assets |  | 6.00 | % |  |  | 6.00 | % |  |  | 6.50 | %
﻿Rate of increase in compensation |  | N/A |  |  |  | N/A |  |  |  | N/A |
﻿
Target and Actual Asset Allocation for Pension Plan by Asset Category |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Percentage of Plan Assets as of December 31,
﻿ |  | Target |  |  |
﻿ |  | Allocation |  |  | Actual Allocation
﻿Asset Category |  | 2018 |  |  | 2017 |  |  | 2016
﻿Cash |  | 5 | % |  |  | 3 | % |  |  | 4 | %
﻿Equity funds: |  |  |  |  |  |  |  |  |  |  |
﻿Domestic |  | 37 |  |  |  | 41 |  |  |  | 47 |
﻿International |  | 28 |  |  |  | 31 |  |  |  | 28 |
﻿Fixed income funds |  | 30 |  |  |  | 25 |  |  |  | 21 |
﻿Total |  | 100 | % |  |  | 100 | % |  |  | 100 | %
﻿
Future Benefit Payments Under the Plans |
﻿ |  |
﻿ |  |
﻿(in thousands) |  |
﻿Year ended December 31, |
﻿2018 | $ | 6,748
﻿2019 |  | 6,798
﻿2020 |  | 6,781
﻿2021 |  | 6,785
﻿2022 |  | 6,721
﻿2023-2027 |  | 32,410
﻿Total | $ | 66,243
﻿
Reconciliation of Changes in Fair Value of Plan Assets, Plan Benefit Obligations and Funded Status |
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ | Year Ended December 31,
﻿(in thousands) | 2017 |  | 2016
﻿Change in Fair Value of Plan Assets |  |  |  |  |
﻿Balance at beginning of year | $ | 66,057 |  | $ | 72,296
﻿Actual return on plan assets |  | 9,224 |  |  | (1,909)
﻿Company contribution |  | 2,838 |  |  | 2,025
﻿Benefit payments |  | (6,578) |  |  | (6,355)
﻿Balance at end of year | $ | 71,541 |  | $ | 66,057
﻿ ﻿
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ | Year Ended December 31,
﻿(in thousands) | 2017 |  | 2016
﻿Change in Benefit Obligations |  |  |  |  |
﻿Balance at beginning of year | $ | 103,681 |  | $ | 105,942
﻿Interest cost |  | 3,919 |  |  | 4,153
﻿Service cost |  | 850 |  |  | 600
﻿Assumption change (gain) loss |  | 3,854 |  |  | 308
﻿Actuarial (gain) loss |  | 492 |  |  | (967)
﻿Benefit payments |  | (6,578) |  |  | (6,355)
﻿Balance at end of year | $ | 106,218 |  | $ | 103,681
﻿
Net Amount Recognized in Consolidated Balance Sheets |
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ | As of December 31,
﻿(in thousands) | 2017 |  | 2016
﻿Funded status | $ | (34,677) |  | $ | (37,624)
﻿Net unfunded amounts recognized in Consolidated Balance Sheets consist of: |  |  |  |  |
﻿Current liabilities | $ | (279) |  | $ | (271)
﻿Long-term liabilities |  | (34,398) |  |  | (37,353)
﻿Total net unfunded amount recognized in Consolidated Balance Sheets | $ | (34,677) |  | $ | (37,624)
﻿
Plan Assets at Fair Value | ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ | As of December 31, 2017 |  | As of December 31, 2016
﻿ | 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 | $ | 2,390 |  | $ | — |  | $ | — |  | $ | 2,390 |  | $ | 2,437 |  | $ | — |  | $ | — |  | $ | 2,437
﻿Fixed income funds |  | 18,031 |  |  | — |  |  | — |  |  | 18,031 |  |  | 14,023 |  |  | — |  |  | — |  |  | 14,023
﻿Equity funds |  | 20,372 |  |  | — |  |  | — |  |  | 20,372 |  |  | 10,489 |  |  | — |  |  | — |  |  | 10,489
﻿ | $ | 40,793 |  | $ | — |  | $ | — |  | $ | 40,793 |  | $ | 26,949 |  | $ | — |  | $ | — |  | $ | 26,949
﻿Closely held funds(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Equity partnerships |  |  |  |  |  |  |  |  |  |  | 8,711 |  |  |  |  |  |  |  |  |  |  |  | 6,931
﻿Hedge fund investments |  |  |  |  |  |  |  |  |  |  | 22,037 |  |  |  |  |  |  |  |  |  |  |  | 32,177
﻿Total closely held funds(a) |  |  |  |  |  |  |  |  |  |  | 30,748 |  |  |  |  |  |  |  |  |  |  |  | 39,108
﻿Total | $ | 40,793 |  | $ | — |  | $ | — |  | $ | 71,541 |  | $ | 26,949 |  | $ | — |  | $ | — |  | $ | 66,057
﻿
| (a) |  | Closely held funds in private investment were measured at fair value using NAV and were not categorized in the fair value hierarchy. Although the investments were not categorized within the fair value hierarchy, the holdings of these private investment funds were comprised of a combination of Level 1, 2 and 3 investments, but were not categorized in the fair value hierarchy because they were measured at NAV using the practical expedient under ASC 820, Fair Value Measurement (“ASC 820”).
Benefit Obligations in Excess of Fair Value of Plans' Assets |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ | As of December 31, 2017 |  | As of December 31, 2016
﻿ |  |  |  | Benefit |  |  |  |  |  |  |  | Benefit |  |  |
﻿ | Pension |  | Equalization |  |  |  |  | Pension |  | Equalization |  |  |
﻿(in thousands) | Plan |  | Plan |  | Total |  | Plan |  | Plan |  | Total
﻿Projected benefit obligation | $ | 102,806 |  | $ | 3,412 |  | $ | 106,218 |  | $ | 100,336 |  | $ | 3,345 |  | $ | 103,681
﻿Accumulated benefit obligation | $ | 102,806 |  | $ | 3,412 |  | $ | 106,218 |  | $ | 100,336 |  | $ | 3,345 |  | $ | 103,681
﻿Fair value of plans' assets |  | 71,541 |  |  | — |  |  | 71,541 |  |  | 66,057 |  |  | — |  |  | 66,057
﻿Projected benefit obligation greater than fair value of plans' assets | $ | 31,265 |  | $ | 3,412 |  | $ | 34,677 |  | $ | 34,279 |  | $ | 3,345 |  | $ | 37,624
﻿Accumulated benefit obligation greater than fair value of plans' assets | $ | 31,265 |  | $ | 3,412 |  | $ | 34,677 |  | $ | 34,279 |  | $ | 3,345 |  | $ | 37,624
﻿
Key Information for the Plans | ﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Expiration
﻿ |  |  |  |  |  |  |  | FIP/RP |  |  |  |  |  |  |  |  |  |  |  |  | Date of
﻿ |  |  |  | Pension Protections Act |  | Status |  | Company Contributions |  |  |  | Collective
﻿ |  | EIN/Pension |  | Zone Status |  | Pending Or |  | (amounts in millions) |  | Surcharge |  | Bargaining
﻿Pension Fund |  | Plan Number |  | 2017 |  | 2016 |  | Implemented |  | 2017 (b) |  | 2016 |  | 2015 |  | Imposed |  | Agreement
﻿The Pension, Hospitalization and Benefit Plan of the Electrical Industry - Pension Trust Fund |  | 13-6123601/001 |  | Green |  | Green |  | N/A |  | $ 16.0 |  |  | $ 15.8 | (a) |  | $ 13.6 | (a) |  | No |  | 4/30/2019
﻿Carpenters Pension Trust Fund for Northern California |  | 94-6050970 |  | Red |  | Red |  | Implemented |  | 8.2 |  |  | 4.4 |  |  | 2.7 |  |  | No |  | 6/30/2019
﻿Laborers Pension Trust Fund for Northern California |  | 94-6277608 |  | Yellow |  | Yellow |  | Implemented |  | 6.6 |  |  | 5.6 |  |  | 2.8 |  |  | No |  | 6/30/2019
﻿Northern California Electrical Workers Pension Plan |  | 94-6062674 |  | Green |  | Green |  | N/A |  | 5.2 |  |  | 1.5 |  |  | 0.3 |  |  | No |  | 5/31/2018
﻿Steamfitters Industry Pension Fund |  | 13-6149680/001 |  | Green |  | Green |  | N/A |  | 3.9 |  |  | 3.9 | (a) |  | 6.2 | (a) |  | No |  | 6/30/2020
| (a) |  | These amounts exceeded 5% of the respective total plan contributions.
| (b) |  | The Company's contributions as a percentage of total plan contributions were not available for any of its plans.

X
- Definition Tabular disclosure of the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall of pension plans and/or other employee benefit plans. + References No definition available. + Details
Name: | tpc_ScheduleOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix: | tpc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in the benefit obligation, fair value of plan assets, and funded status of pension plans or other employee benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(b)(c) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ChangesInProjectedBenefitObligationsFairValueOfPlanAssetsAndFundedStatusOfPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the aggregate benefit obligation and aggregate fair value of plan assets for pension plans and/or other employee benefit plans with benefit obligations in excess of plan assets as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2417-114920 + Details
Name: | us-gaap_ScheduleOfBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the quantitative and qualitative information related to multiemployer plans in which the employer participates. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 + Details
Name: | us-gaap_ScheduleOfMultiemployerPlansTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration