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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Cash flows from operating activities: |  |  |
Net income attributable to Sterling common stockholders | $ 10,663 | $ 1,405 |
Plus: Noncontrolling interests in earnings | 2,158 | 1,272 |
Net income | 12,821 | 2,677 |
Adjustments to reconcile net income to net cash used in operating activities: |  |  |
Depreciation and amortization | 8,307 | 8,387 |
Gain on disposal of property and equipment | (470) | (396) |
Stock-based compensation expense |  | 1,977 |
Impairment on building held-for-sale | 0 | 895 |
Changes in operating assets and liabilities: |  |  |
Contracts receivable | (30,534) | (40,163) |
Costs and estimated earnings in excess of billings on uncompleted contracts | 724 | (4,939) |
Inventories | 3,008 | 1,405 |
Receivables from and equity in construction joint ventures | (386) | (333) |
Other assets | (1,446) | (2,429) |
Accounts payable | (1,073) | 12,922 |
Billings in excess of costs and estimated earnings on uncompleted contracts | (4,070) | 12,513 |
Accrued compensation and other liabilities | 1,761 | (5,968) |
Members' interest subject to mandatory redemption and undistributed earnings | 451 | 1,116 |
Net cash used in operating activities | (9,524) | (12,336) |
Cash flows from investing activities: |  |  |
Tealstone acquisition, net of cash acquired | 0 | (55,000) |
Additions to property and equipment | (5,263) | (5,870) |
Proceeds from sale of property and equipment | 1,307 | 1,907 |
Net cash used in investing activities | (3,956) | (58,963) |
Cash flows from financing activities: |  |  |
Cash received – Oaktree Facility | 0 | 85,000 |
Repayments – equipment-based term loan and other | (665) | (3,953) |
Repayments – Oaktree Facility | (4,679) | 0 |
Debt issuance costs | 0 | 6,889 |
Loss on debt extinguishment | 0 | 755 |
Other | 1,456 | (119) |
Net cash (used in) provided by financing activities | (3,888) | 88,572 |
Net (decrease) increase in cash and cash equivalents | (17,368) | 17,273 |
Cash and cash equivalents at beginning of period | 83,953 | 42,785 | $ 42,785
Cash and cash equivalents at end of period | 66,585 | 60,058 | 83,953
Supplemental disclosures of cash flow information: |  |  |
Cash paid during the period for interest | 5,712 | 3,096 |
Cash paid during the period for income taxes | 279 |  | 78
Non-cash items: |  |  |
Share consideration given for Tealstone acquisition (1,882,058 shares) | 0 |  | 17,061
Notes and deferred payments to sellers | 0 |  | 11,647
Warrants issued to lenders (1,000,000 Warrants) | 0 |  | $ 3,500
Transportation and construction equipment acquired through financing arrangements | $ 0 | $ 70 |
Statement of Cash Flows Parenthetical [Abstract] |  |  |
Business acquisition, equity interest issued or issuable, number of shares |  |  | 1,882,000
Class of warrant or right, issued during the period |  |  | 1,000,000

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- Definition The value of the noncash (or part noncash) consideration given (for example, liability, equity) in a transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition Amount of cash inflow (outflow) for debt classified as other. + References No definition available. + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591551-111686 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 + Details
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- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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