10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

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

For the quarterly period ended June 30, 2015

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)

(Former name, former address and former fiscal year, if changed since last report)

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 and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted 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 and post such files). Yes ☒  No ☐

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

Large accelerated filer ☒	Accelerated filer ☐
Non-Accelerated filer ☐	Smaller reporting company ☐

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 3, 2015was 49,069,589.

TUTOR PERINI CORPORATION AND SUBSIDIARIES

INDEX

			Page Number
Part I.	Financial Information:
	Item 1.	Financial Statements (unaudited)
		Consolidated Condensed Balance Sheets —  June 30, 2015 and December 31, 2014	3 - 4
		Consolidated Condensed Statements of Operations — Three and Six months ended June  30, 2015 and 2014	5
		Consolidated Condensed Statements of Comprehensive Income — Three and Six months ended June  30, 2015 and 2014	6
		Consolidated Condensed Statement of Stockholders’ Equity —Six months ended June  30, 2015	7
		Consolidated Condensed Statements of Cash Flows — Six months ended June  30, 2015 and 2014	8
		Notes to Consolidated Condensed Financial Statements	9 - 31
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	32 - 40
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	40
	Item 4.	Controls and Procedures	40
Part II.	Other Information:
	Item 1.	Legal Proceedings	40
	Item 1A.	Risk Factors	40
	Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	40
	Item 3.	Defaults Upon Senior Securities	41
	Item 4.	Mine Safety Disclosures	41
	Item 5.	Other Information	41
	Item 6.	Exhibits	42
	Signatures		43

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Part I.  - Financial Information

TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONSOLIDATED CONDENSED BALANCE SHEETS

JUNE 30, 2015 AND DECEMBER 31, 2014

(Unaudited-in thousands, except share data)

	June 30, 2015		December 31, 2014
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	106,917	$	135,583
Restricted cash		39,493		44,370
Accounts receivable, including retainage		1,553,514		1,479,504
Costs and estimated earnings in excess of billings		816,480		726,402
Deferred income taxes		17,952		17,962
Other current assets		103,243		68,735
Total current assets		2,637,599		2,472,556
PROPERTY AND EQUIPMENT (net of accumulated depreciation of $237,168 in 2015 and $220,028 in 2014)		537,833		527,602
OTHER ASSETS:
Goodwill		585,006		585,006
Intangible assets, net		98,368		100,254
Other		84,830		87,897
Total assets	$	3,943,636	$	3,773,315

The accompanying notes are an integral part of these consolidated condensed financial statements.

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TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONSOLIDATED CONDENSED BALANCE SHEETS (continued)

JUNE 30, 2015 AND DECEMBER 31, 2014

(Unaudited-in thousands, except share data)

	June 30, 2015		December 31, 2014
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Current maturities of long-term debt	$	86,101	$	81,292
Accounts payable, including retainage		963,230		798,174
Billings in excess of costs and estimated earnings		263,400		319,296
Accrued expenses and other current liabilities		166,198		159,814
Total current liabilities		1,478,929		1,358,576
LONG-TERM DEBT, less current maturities		806,652		784,067
DEFERRED INCOME TAXES		150,193		150,371
OTHER LONG-TERM LIABILITIES		113,284		114,796
Total liabilities		2,549,058		2,407,810
CONTINGENCIES AND COMMITMENTS
STOCKHOLDERS' EQUITY:
Preferred stock, $1 par value:
Authorized – 1,000,000 shares
Issued and outstanding – none		—		—
Common stock - $1 par value: 75,000,000 shares authorized; Shares issued and outstanding: 49,069,589 shares and 48,671,492 shares		49,070		48,671
Additional paid-in capital		1,039,425		1,025,941
Retained earnings		349,414		332,511
Accumulated other comprehensive loss		(43,331)		(41,618)
Total stockholders' equity		1,394,578		1,365,505
Total liabilities and stockholders' equity	$	3,943,636	$	3,773,315

The accompanying notes are an integral part of these consolidated condensed financial statements.

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TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS

 (Unaudited-in thousands, except per share data)

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2015		2014		2015		2014
Revenues	$	1,312,438	$	1,084,510	$	2,378,903	$	2,039,743
Cost of operations		1,213,818		954,979		2,189,524		1,804,865
Gross profit		98,620		129,531		189,379		234,878
General and administrative expenses		67,739		64,088		138,414		127,938
INCOME FROM CONSTRUCTION OPERATIONS		30,881		65,443		50,965		106,940
Other income (expense), net		100		(6,974)		(655)		(10,347)
Interest expense		(10,989)		(10,857)		(22,113)		(21,688)
Income before income taxes		19,992		47,612		28,197		74,905
Provision for income taxes		(8,215)		(19,067)		(11,294)		(30,421)
NET INCOME	$	11,777	$	28,545	$	16,903	$	44,484
BASIC EARNINGS PER COMMON SHARE	$	0.24	$	0.59	$	0.35	$	0.92
DILUTED EARNINGS PER COMMON SHARE	$	0.24	$	0.58	$	0.34	$	0.91
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC		49,028		48,543		48,890		48,492
Effect of dilutive stock options and restricted stock units		800		510		798		500
DILUTED		49,828		49,053		49,688		48,992

The accompanying notes are an integral part of these consolidated condensed financial statements.

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TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited-in thousands)

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2015		2014		2015		2014
NET INCOME	$	11,777	$	28,545	$	16,903	$	44,484
OTHER COMPREHENSIVE INCOME (LOSS):
Foreign currency translation		(1,877)		590		(2,841)		100
Change in fair value of investments		(122)		99		(138)		287
Change in fair value of interest rate swap		99		120		173		258
Other comprehensive income before taxes		(1,900)		809		(2,806)		645
INCOME TAX EXPENSE (BENEFIT):
Foreign currency translation		(731)		243		(1,107)		39
Change in fair value of investments		(48)		106		(54)		113
Change in fair value of interest rate swap		39		44		68		101
Income tax expense		(740)		393		(1,093)		253
NET OTHER COMPREHENSIVE INCOME (LOSS)		(1,160)		416		(1,713)		392
TOTAL COMPREHENSIVE INCOME	$	10,617	$	28,961	$	15,190	$	44,876

The accompanying notes are an integral part of these consolidated condensed financial statements.

6

TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONSOLIDATED CONDENSED STATEMENT OF STOCKHOLDERS’ EQUITY

FOR THE SIX MONTHS ENDED JUNE 30, 2015

(Unaudited-in thousands)

							Accumulated
			Additional				Other
	Common		Paid-in		Retained		Comprehensive
	Stock		Capital		Earnings		(Loss) Income		Total
Balance - December 31, 2014	$	48,671	$	1,025,941	$	332,511	$	(41,618)	$	1,365,505
Net income		—		—		16,903		—		16,903
Other comprehensive income/(loss)		—		—		—		(1,713)		(1,713)
Total comprehensive income										15,190
Tax effect of stock-based compensation		—		(162)		—		—		(162)
Stock-based compensation expense		—		13,324		—		—		13,324
Issuance of common stock, net		399		322		—		—		721
Balance - June 30, 2015	$	49,070	$	1,039,425	$	349,414	$	(43,331)	$	1,394,578

The accompanying notes are an integral part of these consolidated condensed financial statements.

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TUTOR PERINI CORPORATION AND SUBSIDIARIES

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS

(UNAUDITED)

(in thousands)

	Six Months Ended June 30,
	2015		2014
Cash Flows from Operating Activities:
Net income	$	16,903	$	44,484
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		21,434		30,078
Stock-based compensation expense		13,324		9,920
Excess income tax benefit from stock-based compensation		(162)		—
Deferred income taxes		(177)		(64)
Loss on sale of investments		—		1,786
(Gain) loss on sale of property and equipment		(313)		427
Other long-term liabilities		42		5,559
Other non-cash items		(3,259)		1,562
Changes in other components of working capital		(79,550)		(155,187)
NET CASH USED IN OPERATING ACTIVITIES		(31,758)		(61,435)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases		(29,544)		(26,730)
Proceeds from sale of property and equipment		1,122		1,906
Proceeds from sale of available-for-sale securities		—		44,497
Change in restricted cash		4,877		(33)
NET CASH (USED BY) PROVIDED BY INVESTING ACTIVITIES		(23,545)		19,640
Cash Flows from Financing Activities:
Proceeds from debt		473,490		717,484
Repayment of debt		(446,239)		(649,282)
Business acquisition-related payments		—		(1,260)
Excess income tax benefit from stock-based compensation		162		—
Issuance of common stock and effect of cashless exercise		(776)		(1,531)
Debt issuance costs		—		(3,681)
NET CASH PROVIDED BY FINANCING ACTIVITIES		26,637		61,730
Net (Decrease) Increase in Cash and Cash Equivalents		(28,666)		19,935
Cash and Cash Equivalents at Beginning of Year		135,583		119,923
Cash and Cash Equivalents at End of Period	$	106,917	$	139,858
Supplemental Disclosure of Cash Paid For:
Interest	$	26,148	$	21,830
Income taxes	$	19,717	$	33,668
Supplemental Disclosure of Non-cash Transactions:
Property and equipment acquired through financing arrangements not included above	$	—	$	27,045

The accompanying notes are an integral part of these consolidated condensed financial statements.

8

TUTOR PERINI CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS

(1)     Basis of Presentation

The unaudited consolidated condensed financial statements presented herein include the accounts of Tutor Perini Corporation and its wholly owned subsidiaries (“Tutor Perini” or the “Company”). The Company’s interests in construction joint ventures are accounted for using the proportionate consolidation method whereby the Company’s proportionate share of each joint venture’s assets, liabilities, revenues and cost of operations are included in the appropriate classifications in the consolidated financial statements. All intercompany transactions and balances have been eliminated in consolidation.

The unaudited consolidated condensed financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and note disclosures required by accounting principles generally accepted in the United States as codified in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification. These statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

In the opinion of management, the accompanying unaudited consolidated condensed financial statements include all adjustments, consisting only of normal recurring adjustments necessary to present fairly the Company’s financial position as of June 30, 2015 and December 31, 2014, results of operations and comprehensive income, for the three and six months endedJune 30, 2015 and 2014, and cash flows for the six months endedJune 30, 2015 and 2014. The results of operations for the three and six months endedJune 30, 2015 are not indicative of the results that may be expected for the year ending December 31, 2015 because, among other reasons, such results can vary depending on the timing of progress achieved and changes in estimated profitability of projects being reported.

The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional evidence relative to certain estimates or to identify matters that require additional disclosures.

(2)     Significant Accounting Policies

The significant accounting policies followed by the Company and its subsidiaries in preparing its consolidated financial statements are set forth in Note 1 to the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Recently Issued Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update (“ASU”) ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition. This ASU addresses when an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In July 2015, FASB delayed the effective date by one year and is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period, using one of two retrospective application methods. Early application would be permitted only as of annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently evaluating the effect that the adoption of this ASU will have on its financial statements.

In June 2014, the FASB issued ASU No. 2014-12, Compensation — Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, clarifying the recognition timing of expense associated with certain performance based stock awards when the performance target that affects vesting could be achieved after the requisite service period. This ASU is an update to FASB ASC Topic 718 and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 with earlier adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.

In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810). The goal of this ASU is to reduce the potentially distortive impact on reporting entities’ consolidated financial statements resulting from the consolidation of certain legal entities, including joint ventures and variable interest entities. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements. 

In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30). This ASU requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. This ASU is effective for fiscal years, and interim periods within those years,

9

beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on the Company’s financial statements. 

Use of and Changes in Estimates

The Company’s construction business involves making significant estimates and assumptions in the normal course of business relating to its contracts and its joint venture contracts. Management focuses on evaluating the performance of contracts individually.These estimatescan vary in the normal course of business as projects progress, when estimated productivity assumptions change based on experience to date and uncertainties are resolved.Change orders and claims, as well as changes in related estimates of costs to complete, are considered revisions in estimates. The Company uses the cumulative catch-upmethod applicable to construction contract accounting to account for revisions in estimates. The impact on operating margin in a reporting period and future periods from a change in estimate will depend on the stage of contract completion.

During the three months endedJune 30, 2015, the Company’s results of operations were negatively impacted because of an unfavorable change in the estimated cost to complete for a certain Building segment project. This change in estimate resulted in a $14.7 million decrease in income from construction operations, an $8.7 million decrease in net income, and a $0.17 decrease in diluted earnings per share (“EPS”) during the three months ended June 30, 2015.

During the three months ended June 30, 2014, the Company’s results of operations were positively impacted because of changes in the estimated cost recovery on two Civil segment projects based on certain legal rulings issued during the period. One project had a favorable ruling, resulting in a $24.2 million increase, and the second project had an unfavorable ruling, resulting in a $9.4 million decrease. Together, these changes in estimates resulted in a $14.8 million increase in income from construction operations, an $8.8 million increase in net income, and an $0.18 increase in diluted EPS during the three months ended June 30, 2014.

These changes were the only changes in estimates considered material to the Company’s results of operations during the periods presented herein.

(3)     Cash and Cash Equivalents and Restricted Cash

Cash and cash equivalents include short-term, highly liquid investments with original maturities of three months or less when acquired.

Cash and cash equivalents, as reported in the accompanying Consolidated Condensed Balance Sheets, consist of amounts held by the Company that are available for general corporate purposes and the Company’s proportionate share of amounts held by construction joint ventures that are available only for joint venture-related uses, including future distributions to joint venture partners. Restricted cash is primarily held to secure insurance-related contingent obligations, such as insurance claim deductibles, in lieu of letters of credit.

Cash and cash equivalents and restricted cash consisted of the following:

	June 30,		December 31,
	2015		2014
	(in thousands)
Corporate cash and cash equivalents (available for general corporate purposes)	$	48,394	$	40,846
Company's share of joint venture cash and cash equivalents (available only for joint venture purposes, including future distributions)		58,523		94,737
Total Cash and Cash Equivalents	$	106,917	$	135,583
Restricted Cash	$	39,493	$	44,370

10

(4)     Costs and estimated earnings in excess of billings

Costs and estimated earnings in excess of billings related to the Company’s contracts and joint venture contracts consisted of the following:

	June 30,		December 31,
	2015		2014
	(in thousands)
Unbilled costs and profits incurred to date (a)	$	248,561	$	253,078
Unapproved change orders		274,134		161,375
Claims		293,785		311,949
	$	816,480	$	726,402

(a) Represents the excess of contract costs and profits recognized to date on the percentage of completion accounting method over the amount of contract billings to date on certain contracts.

Of the balance of “Unapproved change orders” and “Claims” included above in costs and estimated earnings in excess of billings at June 30, 2015 and December 31, 2014,  approximately $41.3 million and$38.4 million, respectively, are the amounts subject to pending litigation or dispute resolution proceedings as described in Note 7 — Contingencies and Commitments. These amounts are management’s estimate of the probable cost recovery from the disputed claims considering such factors as evaluation of entitlement, settlements reached to date and experience with the customer. In the event that future facts and circumstances, including the resolution of disputed claims, cause a reduction in the aggregate amount of the estimated probable cost recovery from the disputed claims, the amount of such reduction will be recorded against earnings in the relevant future period.

The prerequisite for billing “Unbilled costs and profits incurred to date” is provided in the defined billing terms of each of the applicable contracts. The prerequisite for billing “Unapproved change orders” or “Claims” is the final resolution and agreement between the parties.

(5)     Fair Value Measurements

The Company measures certain financial instruments, including cash and cash equivalents, such as money market funds, at fair value. The fair values were determined based on a three-tier valuation hierarchy for disclosure of significant inputs. These hierarchical tiers are defined as follows:

Level 1 — inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2 — inputs are other than quoted prices in active markets that are either directly or indirectly observable through market corroboration.

Level 3 — inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions based on the best information available in the circumstances.

The carrying amount of cash and cash equivalents approximates fair value due to the short-term nature of these items. The carrying value of receivables, payables and other amounts arising out of normal contract activities, including retainage, which may be settled beyond one year, is estimated to approximate fair value. Of the Company’s long-term debt, the fair values of the fixed rate senior unsecured notes as of June 30, 2015 and December 31, 2014 were $310.1 million and $310.3 million, respectively, compared to the carrying value of $298.9 million and $298.8 million as of June 30, 2015 and December 31, 2014, respectively. The fair value of the senior unsecured notes was estimated using Level 1 inputs based on market quotations including broker quotes or interest rates for the same financial instruments at June 30, 2015 and December 31, 2014. The carrying values of the remaining balance of the Company’s long-term debt of $593.9 million and $566.6 million at June 30, 2015 and December 31, 2014, respectively, were estimated to approximate their fair values.

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The following is a summary of financial statement items carried at estimated fair values measured on a recurring basis as of the dates presented:

			Fair Value Measurements Using
						Significant
				Quoted prices		other		Significant
		Total		in active		observable		unobservable
		Carrying		markets		inputs		inputs
As of June 30, 2015		Value		(Level 1)		(Level 2)		(Level 3)
	(in thousands)
Assets:
Cash and cash equivalents (a)	$	106,917	$	106,917	$	—	$	—
Restricted cash (a)		39,493		39,493		—		—
Investments in lieu of retainage (b)		36,482		26,579		9,903		—
Total	$	182,892	$	172,989	$	9,903	$	—
Liabilities:
Interest rate swap contract (c)	$	208	$	—	$	208	$	—
Contingent consideration (d)		26,334		—		—		26,334
	$	26,542	$	—	$	208	$	26,334

			Fair Value Measurements Using
						Significant
				Quoted prices		other		Significant
		Total		in active		observable		unobservable
		Carrying		markets		inputs		inputs
As of December 31, 2014		Value		(Level 1)		(Level 2)		(Level 3)
	(in thousands)
Assets:
Cash and cash equivalents (a)	$	135,583	$	135,583	$	—	$	—
Restricted cash (a)		44,370		44,370		—		—
Investments in lieu of retainage (b)		33,224		25,761		7,463		—
Total	$	213,177	$	205,714	$	7,463	$	—
Liabilities:
Interest rate swap contract (c)	$	381	$	—	$	381	$	—
Contingent consideration (d)		24,814		—		—		24,814
	$	25,195	$	—	$	381	$	24,814

(a) Cash, cash equivalents and restricted cash consist primarily of money market funds with original maturity dates of three months or less, for which fair value is determined through quoted market prices.

(b) Investments in lieu of retainage are classified as account receivables, including retainage and are comprised primarily of money market funds for which fair value is determined through quoted market prices. Investment in lieu of retainage also includes U.S. Treasury Notes and other municipal bonds for which fair value is determined through quoted market prices and other similar high quality investments whose values are determined from readily-available pricing sources for comparable instruments.

(c) As discussed in Note 10 — Financial Commitments, the Company entered into a swap agreement with Bank of America, N.A. to establish a long-term interest rate for its former $200 million five-year term loan. The swap agreement became effective for the term loan principal balance outstanding at January 31, 2012. This term loan was paid off and the then current amount refinanced on June 5, 2014, providing for a $250 million term loan maturing on June 5, 2019. The interest rate swap continues on its original basis for the initial term and amount and finalizes on June 30, 2016. Bank of America calculates the fair market value of the interest rate swap liability by utilizing a mark-to-market valuation model that is based on current observable interest rates, expected future interest rates and the Company’s credit risk. The Company reviews the mark-to-market valuation when determining the fair value of the interest rate swap liability to be recognized. This liability is classified as a component of other long-term liabilities.

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(d) The liabilities listed as of June 30, 2015 and December 31, 2014 above represent the contingent consideration for the Company’s acquisitions in 2011 for which the measurement periods for purchase price analyses for the acquisitions have concluded.

The Company did not have any transfers between Levels 1 and 2 of financial assets or liabilities that are fair valued on a recurring basis during the three and six months ended June 30, 2015 and 2014.

The following is a summary of changes in Level 3 liabilities measured at fair value on a recurring basis during the three and six months endedJune 30, 2015 and 2014:

	Contingent
	Consideration
	(in thousands)
Balance at December 31, 2014	$	24,814
Fair value adjustments included in other income (expense), net		746
Contingent consideration settled		—
Balance at March 31, 2015	$	25,560
Fair value adjustments included in other income (expense), net		774
Contingent consideration settled		—
Balance at June 30, 2015	$	26,334

	Contingent
	Consideration
	(in thousands)
Balance at December 31, 2013	$	46,022
Fair value adjustments included in other income (expense), net		3,404
Contingent consideration settled		(1,031)
Balance at March 31, 2014	$	48,395
Fair value adjustments included in other income (expense), net		2,162
Contingent consideration settled		(229)
Balance at June 30, 2014	$	50,328

The fair values of the contingent consideration were estimated using an income approach based on the cash flows that the acquired entity is expected to generate in the future. This approach requires management to project revenues, operating expenses, working capital investment, capital spending and cash flows for the reporting unit over a multi-year period, as well as determine the weighted-average cost of capital to be used as a discount rate (weighted-average cost of capital inputs have ranged from 14%-18%).

(6)     Goodwill and Intangible Assets

The Company tests goodwill and intangible assets with indefinite lives for impairment by applying a fair value test in the fourth quarter of each year and between annual tests if events occur or circumstances change that suggest a material adverse change to the most recently concluded valuation. The Company did not observe any changes in facts or circumstances during the three and six months endedJune 30, 2015 that would indicate a material adverse change to the fourth quarter 2014 concluded valuation.

The Company tests intangible assets with finite lives for impairment whenever events or circumstances indicate that the carrying value may not be recoverable. The Company did not observe any events or circumstances during the three and six months endedJune 30, 2015 that would indicate that the carrying value of its intangible assets may not be recoverable.

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The following table presents the carrying amount of goodwill allocated to the Company’s reporting units as of June 30, 2015:

					Specialty
	Civil		Building		Contractors		Total
	(in thousands)
Gross Goodwill Balance	$	492,074	$	424,724	$	156,193	$	1,072,991
Accumulated Impairment		(76,716)		(411,269)		—		(487,985)
Balance at December 31, 2014	$	415,358	$	13,455	$	156,193	$	585,006
Current activity		—		—		—		—
Balance at June 30, 2015	$	415,358	$	13,455	$	156,193	$	585,006

Intangible assets consist of the following:

	June 30, 2015								Weighted
					Accumulated				Average
			Accumulated		Impairment		Carrying		Amortization
	Cost		Amortization		Charge		Value		Period
	(in thousands)
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)		74,350		(10,073)		(23,232)		41,045	20 years
Contractor license		6,000		—		(6,000)		—	Indefinite
Customer relationships		39,800		(16,242)		(16,645)		6,913	11.4 years
Construction contract backlog		73,706		(73,706)		—		—	N/A
Total	$	311,456	$	(100,021)	$	(113,067)	$	98,368

		December 31, 2014							Weighted
					Accumulated				Average
			Accumulated		Impairment		Carrying		Amortization
		Cost	Amortization		Charge		Value		Period
	(in thousands)
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)		74,350		(8,829)		(23,232)		42,289	20 years
Contractor license		6,000		—		(6,000)		—	Indefinite
Customer relationships		39,800		(15,600)		(16,645)		7,555	11.4 years
Construction contract backlog		73,706		(73,706)		—		—	3.6 years
Total	$	311,456	$	(98,135)	$	(113,067)	$	100,254

Amortization expense was $1.0 million and $1.9 millionfor the three and six months endedJune 30, 2015 compared to $3.7 million and $7.3 million during the same periods 2014. The following table presents estimated amortization expense of intangible assets for the remainder of 2015 and for the succeeding years:

Fiscal Year		(in millions
2015 (six months remaining)	$	1.8
2016		3.5
2017		3.5
2018		3.5
2019		3.5
Thereafter		32.2
Total	$	48.0

(7) Contingencies and Commitments

The Company and certain of its subsidiaries are involved in litigation and are contingently liable for commitments and performance guarantees arising in the ordinary course of business. The Company and certain of its clients have made claims arising from the

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performance under their contracts. The Company recognizes certain significant claims for recovery of incurred cost when it is probable that the claim will result in additional contract revenue and when the amount of the claim can be reliably estimated. These assessments require judgments concerning matters such as litigation developments and outcomes, the anticipated outcome of negotiations, the number of future claims and the cost of both pending and future claims. In addition, because most contingencies are resolved over long periods of time, liabilities may change in the future due to various factors.

Several matters are in the litigation and dispute resolution process. The following discussion provides a background and current status of these matters.

Tutor-Saliba-Perini Joint Venture vs. Los Angeles MTA Matter

During 1995, Tutor-Saliba-Perini (“Joint Venture”) filed a complaint in the Superior Court of the State of California for the County of Los Angeles against the Los Angeles County Metropolitan Transportation Authority (“LAMTA”), seeking to recover costs for extra work required by LAMTA in connection with the construction of certain tunnel and station projects, all of which were completed by 1996. In 1999, LAMTA countered with civil claims under the California False Claims Act against the Joint Venture, Tutor-Saliba and the Company jointly and severally (together, “TSP”), and obtained a judgment that was reversed on appeal and remanded for retrial before a different judge.

Between 2005 and 2010, the court granted certain Joint Venture motions and LAMTA capitulated on others, which reduced the number of false claims LAMTA may seek and limited LAMTA’s claims for damages and penalties. In September 2010, LAMTA dismissed its remaining claims and agreed to pay the entire amount of the Joint Venture’s remaining claims plus interest. In the remanded proceedings, the Court subsequently entered judgment in favor of TSP and against LAMTA in the amount of $3.0 million after deducting $0.5 million, representing the tunnel handrail verdict plus accrued interest against TSP. The parties filed post-trial motions for costs and fees. The Court ruled that TSP’s sureties could recover costs, LAMTA could recover costs for the tunnel handrail trial, and no party could recover attorneys’ fees. TSP appealed the false claims jury verdict on the tunnel handrail claim and other issues, including the denial of TSP’s and its sureties’ request for attorneys’ fees. LAMTA subsequently filed its cross-appeal. In June 2014, the Court of Appeal issued its decision reversing judgment on the People’s Unfair Competition claim and reversing the denial of TSP’s Sureties’ request for attorney’s fees and affirming the remainder of the judgment. In January 2015, payment was made by LAMTA in the amount of $3.8 million in settlement of all outstanding issues except for the attorney’s fees for TSP’s Sureties.

On May 1, 2015, TSP’s Surety’s motions for attorney’s fees were heard, and the Court issued its written ruling on May 5, 2015 in favor of TSP’s Sureties for a total award of $2.1 million. The Court denied adding interest onto these amounts. On June 26, 2015, payment was made by LAMTA for these amounts, which was received by TSP. On June 23, 2015, TSP’s Sureties filed a Notice of Appeal challenging the amount awarded to seek an increase.

The Company does not expect this matter to have any material effect on its consolidated financial statements.

Long Island Expressway/Cross Island Parkway Matter

The Company reconstructed the Long Island Expressway/Cross Island Parkway Interchange project for the New York State Department of Transportation (the “NYSDOT”). The $130 million project was substantially completed in January 2004 and was accepted by the NYSDOT as finally 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 that the NYSDOT is responsible.

In March 2011, the Company filed its claim and complaint with the New York State Court of Claims and served to the New York State Attorney General’s Office, seeking damages in the amount of $53.8 million. In May 2011, the 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 the NYSDOT which resulted in an amount of $0.5 million payable to the Company and formally closed out the project, which allowed the Company’s claim to be re-filed. The Company re-filed its claim in the amount of $53.8 million with the NYSDOT in February 2012 and with the Court of Claims in March 2012. In May 2012, the NYSDOT served its answer and counterclaims in the amount of $151 million alleging fraud in the inducement and punitive damages related to 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 the City’s affirmative defenses and counterclaims based on DBE fraud. The Company does not expect the counterclaims to have any material effect on its consolidated financial statements. Discovery is ongoing.

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 financial statements at that time.

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Fontainebleau Matter

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

DMI and Fisk filed liens in Nevada for approximately $44 million, representing unreimbursed costs to date and lost profits, including anticipated profits. Other unaffiliated subcontractors have also filed liens. In June 2009, DMI filed suit against Turnberry West Construction, Inc. (“Turnberry”), the general contractor, in the 8th 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, and this transaction closed in February 2010. As a result of a July 2010 ruling relating to certain priming liens, there was approximately $125 million set aside from this sale, which is available for distribution to satisfy the creditor claims based on seniority. At that time, the total estimated sustainable lien amount was approximately $350 million. The project lender filed suit against the mechanic’s lien claimants, including DMI and Fisk, alleging that certain mechanic’s liens are invalid and that all mechanic’s liens are subordinate to the lender’s claims against the property. The Nevada Supreme Court ruled in October 2012 in an advisory opinion at the request of the Bankruptcy Court that lien priorities would be determined in favor of the mechanic lien holders under Nevada law.

In October 2013, a settlement was reached by and among the Statutory Lienholders and the other interested parties. The agreed upon settlement has not had an impact on the Company’s recorded accounting position as of the period ended June 30, 2015. The execution of that settlement agreement continues under the supervision of a mediator appointed by the Bankruptcy Court. 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 financial statements at that time.

Honeywell Street/Queens Boulevard Bridges Matter

In 1999, the Company was awarded a contract for reconstruction of the Honeywell Street/Queens Boulevard Bridges project for the City of New York (the “City”). In June 2003, after substantial completion of the project, the Company initiated an action to recover $8.8 million in claims against the City on behalf of itself and its subcontractors. In March 2010, the City filed counterclaims for $74.6 million and other relief, alleging fraud in connection with the DBE requirements for the project. In May 2010, the Company served the City with its response to the City’s counterclaims and affirmative defenses. In August 2013, the Court granted TPC’s motion to dismiss the City’s affirmative defenses and counterclaims relating to fraud. In September 2013, the City filed a Notice of Appeal to the Court’s decision; said appeal was dismissed by the Appellate Court in November 2014.  The Note of Issue is due to be filed on August 11, 2015, at which point the case is expected to be scheduled for trial. Discovery is ongoing.

The Company does not expect this matter to have any material effect on its consolidated financial statements.

Westgate Planet Hollywood Matter

Tutor-Saliba Corporation (“TSC”), a wholly owned subsidiary of the Company, contracted to construct a time share development project in Las Vegas which was substantially completed in December 2009. The Company’s claims against the owner, Westgate Planet Hollywood Las Vegas, LLC (“WPH”), relate to unresolved owner change orders and other claims. The Company filed a lien on the project in the amount of $23.2 million, and filed its complaint with the District Court, Clark County, Nevada. Several subcontractors have also recorded liens, some of which have been released by bonds and some of which have been released as a result of subsequent payment. WPH has posted a mechanic’s lien release bond for $22.3 million.

WPH filed a cross-complaint alleging non-conforming and defective work for approximately $51 million, primarily related to alleged defects, misallocated costs, and liquidated damages. WPH revised the amount of their counterclaims to approximately $45 million.

Following multiple post-trial motions, final judgment was entered in this matter on March 20, 2014. TSC was awarded total judgment in the amount of $19.7 million on its breach of contract claim, which includes an award of interest up through the date of judgment, plus attorney’s fees and costs. WPH has paid $0.6 million of that judgment. WPH was awarded total judgment in the amount of $3.1 million on its construction defect claims, which includes interest up through the date of judgment. The awards are not offsetting. WPH and its Sureties have filed a notice of appeal. TSC has filed a notice of appeal on the defect award. In July 2014, the Court ordered WPH to post an additional supersedeas bond on appeal, in the amount of $1.7 million, in addition to the lien release bond of $22.3 million, which increases the security up to $24.0 million. Oral argument, if any, on the appeals is anticipated to be scheduled for early 2016.

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The Company does not expect this matter to have any material effect on its consolidated financial statements. 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 financial statements at that time.

Brightwater Matter

In 2006, the Department of Natural Resources and Parks Wastewater Treatment Division of King County (“King County”), as Owner, and Vinci Construction Grands Projects/Parsons RCI/Frontier-Kemper, Joint Venture (“VPFK”), as Contractor, entered into a contract to construct the Brightwater Conveyance System and tunnel sections in Washington State. Frontier-Kemper, a wholly owned subsidiary of the Company, is a 20% minority partner in the joint venture.

In April 2010, King County filed a lawsuit alleging damages in the amount of $74 million, plus costs, for VPFK’s failure to complete specified components of the project in the King County Superior Court, State of Washington. Shortly thereafter, VPFK filed a counterclaim in the amount of approximately $75 million, seeking reimbursement for additional costs incurred as a result of differing site conditions, King County’s defective specifications, and for damages sustained on VPFK’s tunnel boring machines (“TBM”), and increased costs as a result of hyperbaric interventions. VPFK’s claims were presented to a Dispute Resolution Board (“DRB”) who generally found that King County was liable to VPFK for VPFK’s claims for encountering differing site conditions, including damages to the TBM, but not on claims related to defective design specifications. From June through August 2012, each party filed several motions for summary judgment on certain claims and requests in preparation for trial, which were heard and ruled upon by the Court. The Court granted and denied various requests of each party related to evidence and damages.

In December 2012, a jury verdict was received in favor of King County in the amount of $155.8 million and a verdict in favor of VPFK in the amount of $26.3 million. In late April 2013, the Court ruled on post-trial motions and ordered VPFK’s sureties to pay King County’s attorneys’ fees and costs in the amount of $14.7 million. All other motions were denied. On May 7, 2013, VPFK paid the full verdict amount and the associated fees, thus terminating any interest on the judgment. VPFK’s notice of appeal was filed on May 31, 2013. King County has appealed approximately $17.0 million of the verdict award in VPFK’s favor and VPFK’s sureties have appealed the Court’s order granting King County’s request for legal fees and costs. Oral argument was held on March 9, 2015 and a decision is expected within three to six months.

The ultimate financial impact of King County’s lawsuit is not yet specifically determinable. In the fourth quarter of 2012, management developed a range of possible outcomes and has recorded a charge to income and a contingent liability of $5.0 million in accrued expenses. In developing a range of possible outcomes, management considered the jury verdict, continued litigation and potential settlement strategies. Management determined that there was no estimate within the range of possible outcomes that was more probable than the other and recorded a liability at the low end of the range. As of June 30, 2015, there were no changes in facts or circumstances that led management to believe that there were any changes to the probability of outcomes. The amount of payments in excess of the established contingent liability is recorded in Accounts Receivable on the Company’s Consolidated Condensed Balance Sheet as of June 30, 2015. Estimating and recording future outcomes of litigation proceedings require significant judgment and assumptions about the future, which are inherently subject to risks and uncertainties. If a final recovery turns out to be materially less favorable than our estimates, this may have a significant impact on the Company’s financial results. 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 financial statements at that time.

156 Stations Matter

In December 2003, Five Star Electric Corporation (“FSE”), a wholly owned subsidiary of the Company, entered into an agreement with the Prime Contractor Transit Technologies, L.L.C (“Transit”), a Consortium member of Siemens Transportation Transit Technologies, L.L.C (“Siemens”), to assist in the installation of new public address and customer information screens system for each of the 156 stations for the New York City Transit Authority (“NYCTA”) as the owner.

In June 2012, an arbitration panel awarded FSE a total of approximately $11.9 million. Subsequently, the Court affirmed FSE’s position, however, decided that only $8.5 million of the total arbitration award of $11.9 million can be recovered against the payment bond. In December 2014, FSE filed its reply for the motion for re-argument with regard to the reduction in recoverable costs against the payment bond.

This matter was fully settled in April 2015 and payment was received. The settlement amount was consistent with the Company’s recorded position and, accordingly, the settlement did not have a material impact on the Company’s consolidated financial statements.

U.S. Department of Commerce, National Oceanic and Atmospheric Administration Matter

Rudolph and Sletten, Inc. (“R&S”), a wholly owned subsidiary of the Company, entered into a contract with the United States Department of Commerce, National Oceanic and Atmospheric Administration (“NOAA” or “Owner”) for the construction of a

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287,000 square-foot facility for NOAA’s Southwest Fisheries Science Center Replacement Headquarters and Laboratory in La Jolla, California. The contract work began on May 24, 2010, and was substantially completed in September 2012. R&S incurred significant additional costs as a result of a design that contained errors and omissions, NOAA’s unwillingness to correct design flaws in a timely fashion and a refusal to negotiate the time and pricing associated with change order work.

R&S has filed three certified claims against NOAA for contract adjustments related to the unresolved Owner change orders, delays, design deficiencies and other claims. The First Certified Claim was submitted on August 20, 2013, in the amount of $26.8 million ("First Certified Claim") and the Second Certified Claim was submitted on October 30, 2013, in the amount of $2.6 million ("Second Certified Claim") and the Third Certified Claim was submitted on October 1, 2014 in the amount of $0.7 million (“Third Certified Claim”).  

NOAA requested an extension to issue a decision on the First Certified Claim and on the Third Certified Claim, but did not request an extension of time to review the Second Certified Claim. On January 6, 2014, R&S filed suit in the United States Federal Court of Claims on the Second Certified Claim plus interest and attorney's fees and costs. This was followed by a submission of a law suit on the First Certified Claim on July 31, 2014. In February 2015 the Court denied NOAA’s motion to dismiss the Second Certified Claim. In March 2015 the Contracting Officer issued decisions on all Claims accepting a total of approximately $1.0 million of claims and denying approximately $29.5 million of claims. On April 14, 2015, the Court consolidated the cases and has commenced discovery through July 2016. No trial date has been set.

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 financial statements at that time.

(8)     Income Taxes

The Company’s income tax provision was $8.2 million and $11.3 million for the three and six months ended June 30, 2015 compared to the income tax provision of $19.1 million and $30.4 million for the three and six months ended June 30, 2014. The effective income tax rate was 41.1% and 40.1% for the three and six months ended June 30, 2015, respectively, compared to 40.0% and 40.6% for the same period in 2014.

As of June 30, 2015, the total amount of unrecognized tax benefits, including related interest and penalties was $7.9 million. If the total amount of unrecognized tax benefits was recognized, $6.8 million of unrecognized tax benefits and $1.1 million of interest would decrease the effective tax rate.

(9)     Stock-Based Compensation

The Company is authorized to grant up to 8,500,000 stock-based compensation awards to key executives, employees, other key persons, including consultants, and directors of the Company under the Amended and Restated Tutor Perini Corporation Long-Term Incentive Plan (the “Plan”). The Plan allows stock-based compensation awards to be granted in a variety of forms, including stock options, stock appreciation rights, restricted stock unit awards, unrestricted stock awards, deferred stock awards and dividend equivalent rights. The terms and conditions of the awards granted are established by the Compensation Committee of the Company’s Board of Directors who also administers the Plan.

The Company intends to settle stock awards in shares upon vesting to the extent that the Company has shares available under the Plan. A total of 46,768 shares of common stock remain available for future grant under the Plan at June 30, 2015.

Restricted Stock Unit Awards

Restricted stock unit awards generally vest subject to the satisfaction of service requirements or the satisfaction of both service requirements and achievement of certain performance targets. Upon vesting, each restricted stock unit award is exchanged for one share of the Company’s common stock. The grant date fair values of these awards are determined based on the closing price of the Company’s stock on either the award date (if subject only to service conditions), or the date that the Compensation Committee establishes the applicable performance target (if subject to performance conditions). The related compensation expense is amortized over the applicable requisite service period. As of June 30, 2015, the Compensation Committee has approved the grant of an aggregate of 6,276,430 restricted stock unit awards under the 2004 Stock Option and Incentive Plan (and amendments) to eligible participants.

During thesix months ended June 30, 2015, the Compensation Committee established the 2015 performance targets for 321,500 restricted stock units awarded in 2015, 2013, and 2012. The restricted stock unit awards granted during the first half of 2015 had a weighted average grant date fair value of $23.07. The grant date fair value is determined based on the closing price of the Company’s common stock on the date of the grant.

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During the six months ended June 30, 2014, the Compensation Committee established the 2014 performance targets for 866,500 restricted stock units awarded in 2014, 2013, and 2012. The restricted stock unit awards granted during the first half of 2014 had a weighted average grant date fair value of $27.33. The grant date fair value is determined based on the closing price of the Company’s common stock on the date of the grant.

1,560 restricted stock unit awards were forfeited during thesix months endedJune 30, 2015.

During the three and six months endedJune 30, 2015, the Company recognized $3.0 million and $8.6 million, respectively, of compensation expense related to restricted stock unit awards, as compared to $3.2 million and $7.0 million during the three and six months endedJune 30, 2014. Such expense is included in general and administrative expenses in the Consolidated Condensed Statements of Operations. As of June 30, 2015, there was $15.8 million of unrecognized compensation cost related to the unvested awards which, absent significant forfeitures in the future, is expected to be recognized over a weighted average period of approximately 1.6 years.

A summary of restricted stock unit awards activity for the six months endedJune 30, 2015 is as follows:

				Aggregate
		Weighted Average		Intrinsic
	Number	Grant Date		Value
	of Shares	Fair Value		(in thousands)
Granted and Unvested - January 1, 2015	1,056,597	$	26.54	$	25,432
Activity during the six months ended June 30, 2015:
Vested	(365,940)	$	27.18	$	7,896
Granted	321,500	$	23.07	$	6,938
Forfeited	(1,560)	$	28.59	$	—
Total Granted and Unvested - June 30, 2015	1,010,597	$	26.70	$	21,809
Approved for grant	709,500	$	(a)	$	15,311
Total Awarded and Unvested - June 30, 2015	1,720,097	$	n.a.	$	37,120

(a) Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.

The outstanding unvested awards at June 30, 2015 are scheduled to vest as follows, subject where applicable to the achievement of performance targets. As described above, certain performance targets are not yet established.

	Number
Vesting Date	of Awards
2015	5,000
2016	302,500
2017	957,597
2018	296,000
2019	159,000
	1,720,097

35,000 of the unvested restricted stock unit awards will vest based on the satisfaction of service requirements and 1,685,097 of the unvested restricted stock unit awards will vest based on the satisfaction of both service requirements and the achievement of performance targets.

Stock Options

Stock option awards generally vest subject to the satisfaction of service requirements or the satisfaction of both service requirements and achievement of certain performance targets. The grant date fair values of these awards are determined based on the Black-Scholes option price model on either the award date (if subject only to service conditions) or the date that the Compensation Committee establishes the applicable performance target (if subject to performance conditions). The related compensation expense is amortized

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over the applicable requisite service period. The exercise price of the options is equal to the closing price of the Company’s common stock on the date the awards were approved by the Compensation Committee, and the awards expire ten years from the award date. As of June 30, 2015, the Compensation Committee has approved the award of an aggregate of 3,385,465 stock options to eligible participants.

During the six months ended June 30, 2015, the Compensation Committee established certain performance targets for 259,000 stock options awarded in 2015, 2014, 2013, and 2012. The stock option awards granted during the first half of 2015 had a weighted average grant date fair value of $12.48.

During the six months ended June 30, 2014, the Compensation Committee established certain performance targets for 714,000 stock options awarded in 2014, 2013 and 2012. The stock option awards granted during the first half of 2014 had a weighted average grant date fair value of $17.69.  

For the three and six months endedJune 30, 2015, the Company recognized compensation expense related to stock option awards of $1.1 million and $4.7 million, respectively, as compared to $1.3 million and $2.9 million for the three and six months endedJune 30, 2014, respectively. Such expenses are included in general and administrative expenses in the Consolidated Statements of Operations. As of June 30, 2015, there was $5.1 million of unrecognized compensation expense related to the outstanding options, which, absent significant forfeitures in the future, is expected to be recognized over a weighted average period of approximately 1.2 years.

A summary of stock option activity for the six months endedJune 30, 2015 is as follows:

		Weighted Average
	Number	Grant Date		Exercise
	of Shares	Fair Value		Price
Granted and Outstanding - January 1, 2015	1,989,000	$	12.75	$	19.63
Activity during the six months ended June 30, 2015:
Granted	259,000	$	12.48	$	16.07
Exercised	—	$	—	$	—
Forfeited	—	$	—	$	—
Total Granted and Outstanding - June 30, 2015	2,248,000	$	11.93	$	19.22
Approved for grant	677,000	$	(a)	$	20.82
Total Awarded and Outstanding - June 30, 2015	2,925,000	$	n/a	$	19.59

(a) Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.

There were 1,485,000 stock options that have vested and were exercisable at June 30, 2015 at a weighted average exercise price of $19.57 per share.

Of the remaining stock options outstanding, approximately 15,000 stock options will vest based on the satisfaction of service requirements and 1,425,000 stock options will vest based on the satisfaction of both service requirements and the achievement of performance targets.

At June 30, 2015, the outstanding stock options of 2,248,000 had an intrinsic value of $8.4 million and a weighted average remaining contractual life of 5.7 years.

No stock options were granted during the second quarter of 2015. The following table details the key assumptions used in estimating the grant date fair values of stock option awards granted during the first quarter of 2015 based on the Black Scholes option pricing model using the following key assumptions:

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Awarded during		2015			2013			2012
Number of options		100,000			9,000			150,000
Risk-free interest rate		1.46	%		1.77	%		1.15	%
Expected life of options (years)		5.50			5.68			4.06
Expected volatility of underlying stock		45.11	%		43.92	%		45.92	%
Expected quarterly dividends (per share)	$	—		$	—		$	—

(10)     Financial Commitments

Amended Credit Agreement

On June 5, 2014, the Company entered into a Sixth Amended and Restated Credit Agreement, (the “Credit Facility”) restructuring its former $300 million revolving credit facility and $200 million Term Loan. All outstanding amounts under the Fifth Amended and Restated Credit Agreement were repaid in full using proceeds of the Credit Facility. The new agreement provides for a $300 million revolving credit facility (the “Revolving Credit Facility") and a $250 million term loan (the “Term Loan”) with Bank of America, N.A. as Administrative Agent, Swing Line Lender and L/C Issuer and a syndicate of other lenders. The Term Loan principal is to be repaid on a quarterly basis, with 6.0% of the original total outstanding principal repaid in year 1, 9.0% in year 2, 12.0% in year 3, 15.0% in year 4 and 13.5% in year 5 along with a balloon payment of the remaining 44.5% due at maturity. Borrowings under the Revolving Credit Facility bear interest based either on Bank of America’s prime lending rate or the London Interbank Offered Rate (“LIBOR”) plus an applicable margin. Borrowings under the Term Loan bear interest based on LIBOR plus an applicable margin. Included in the Credit Facility is a special provision allowing an additional accordion provision, which the Company may opt to utilize at a future date to increase either the Revolving Credit Facility or establish one or more new term loan commitments, up to an aggregate amount not to exceed $300 million. The Credit Facility provides a sublimit for the issuance of letters of credit up to the aggregate amount of $150 million. Both the Revolving Credit Facility and the Term Loan mature on June 5, 2019.

The Revolving Credit Facility and Term Loan include usual and customary covenants for credit facilities of this type, including covenants providing maximum allowable ranges of consolidated leverage ratios from 3.75:1.00 to 2.75:1.00 over a range of five years and maintaining a minimum consolidated fixed charge coverage ratio of 1.25:1.00. The Credit Facility eliminated the other covenant requirements that were formerly held under the Fifth Amended and Restated Credit Agreement.

Substantially all of the Company’s subsidiaries unconditionally guarantee the obligations of the Company under the Credit Facility. The obligations under the Credit Facility are secured by a lien on all personal property of the Company and its subsidiaries party thereto. Any outstanding loans under the Revolving Facility and the Term Loan mature on June 5, 2019. The Term Loan balance was $235.0 million at June 30, 2015. The Company was in compliance with the financial covenants under the Credit Facility for the period ended June 30, 2015.

The Company had $185.0 million of outstanding borrowings under its Revolving Facility as of June 30, 2015 and $130.0 million as of December 31, 2014. The net change in borrowings under the Revolving Facility comprises all “Proceeds from debt” and a significant portion of all “Repayment of debt” as presented in the Consolidated Condensed Statements of Cash Flows. The Company utilized the Revolving Facility for letters of credit in the amount of $0.2 million as of June 30, 2015 and $1.0 million as of December 31, 2014. Accordingly, at June 30, 2015, the Company had $114.8 million available to borrow under the Revolving Facility.

(11)     Earnings per Common Share

Basic earnings per common share were computed by dividing net income by the weighted average number of common shares outstanding. Diluted earnings per common share were similarly computed after giving consideration to the dilutive effect of stock options and restricted stock unit awards outstanding on the weighted average number of common shares outstanding. The computation of diluted earnings per common share for the three and six months ended June 30, 2015excluded the antidilutive effect of 120,097 and 65,049 antidilutive restricted stock awards. The computation of diluted earnings per common share for the three and six months ended June 30, 2015 excluded the antidilutive effect of 628,000 and 573,500 stock options.

(12)     Business Segments

The Company’s chief operating decision maker is the Chairman and Chief Executive Officer, who decides how to allocate resources and assess performance of the business segments. Generally, the Company evaluates performance of its operating segments on the basis of income from construction operations and cash flow.

21

The following table sets forth certain reportable segment information relating to the Company’s operation for the three and six months ended June 30, 2015 and 2014 (in thousands):

	Reportable Segments
					Specialty							Consolidated
(in thousands)	Civil			Building	Contractors		Totals		Corporate			Total
Three Months Ended June 30, 2015
Total revenues	$	573,360	$	472,247	$	326,798	$	1,372,405	$	—		$	1,372,405
Elimination of intersegment revenues		(39,180)		(20,843)		56		(59,967)		—			(59,967)
Revenues from external customers	$	534,180	$	451,404	$	326,854	$	1,312,438	$	—		$	1,312,438
Income from construction operations	$	46,329	$	(12,592)	$	13,743	$	47,480	$	(16,599)	(a)	$	30,881
Three Months Ended June 30, 2014
Total revenues	$	398,123	$	390,353	$	321,959	$	1,110,435	$	—		$	1,110,435
Elimination of intersegment revenues		(7,584)		(18,341)		—		(25,925)		—			(25,925)
Revenues from external customers	$	390,539	$	372,012	$	321,959	$	1,084,510	$	—		$	1,084,510
Income from construction operations	$	58,002	$	7,674	$	12,633	$	78,309	$	(12,866)	(a)	$	65,443
	Reportable Segments
					Specialty							Consolidated
(in thousands)	Civil			Building	Contractors		Totals		Corporate			Total
Six Months Ended June 30, 2015
Total revenues	$	966,236	$	888,309	$	619,816	$	2,474,361	$	—		$	2,474,361
Elimination of intersegment revenues		(57,382)		(38,076)		—		(95,458)		—			(95,458)
Revenues from external customers	$	908,854	$	850,233	$	619,816	$	2,378,903	$	—		$	2,378,903
Income from construction operations	$	76,923	$	(14,870)	$	24,267	$	86,320	$	(35,355)	(a)	$	50,965
Six Months Ended June 30, 2014
Total revenues	$	774,515	$	701,668	$	614,104	$	2,090,287	$	—		$	2,090,287
Elimination of intersegment revenues		(18,820)		(31,724)		—		(50,544)		—			(50,544)
Revenues from external customers	$	755,695	$	669,944	$	614,104	$	2,039,743	$	—		$	2,039,743
Income from construction operations	$	102,347	$	9,497	$	20,450	$	132,294	$	(25,354)	(a)	$	106,940

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

The following table sets forth certain reportable segment information relating to the Company’s total assets as of June 30, 2015 and December 31, 2014 (in thousands):

	June 30, 2015		December 31, 2014
(in thousands)
Building	$	671,060	$	680,933
Civil		1,934,040		1,814,170
Specialty Contractors		863,831		775,162
Totals	$	3,468,931	$	3,270,265
Corporate (a)		474,705		503,050
Consolidated Total	$	3,943,636	$	3,773,315

(a) Consists principally of Cash and Cash Equivalents and corporate transportation equipment.

22

(13)     Employee Pension Plans

The Company has a defined benefit pension plan and an unfunded supplemental retirement plan. Effective September 1, 2004, all benefit accruals under the Company’s pension plan 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 the net periodic benefit cost by component for the three and six months endedJune 30, 2015 and 2014:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(in thousands)				(in thousands)
Interest cost	$	1,011	$	1,030	$	2,022	$	2,060
Expected return on plan assets		(1,256)		(1,192)		(2,512)		(2,384)
Amortization of net loss		1,460		1,077		2,920		2,154
Net periodic benefit cost	$	1,215	$	915	$	2,430	$	1,830

The Company contributed $1.4 million and $1.5 million to its defined benefit pension plan during the six months endedJune 30, 2015 and 2014, respectively. The Company expects to contribute an additional $1.3 million to its defined benefit pension plan during the remainder of fiscal year 2015.

(14)     Related Party Transactions

The Company leases certain facilities from Ronald N. Tutor, the Company’s Chairman and Chief Executive Officer, and an affiliate owned by Mr. Tutor under non-cancelable operating lease agreements. On April 18, 2014, the Company and Ronald N. Tutor entered into two separate lease agreements, replacing the former leases which terminated on May 31, 2014. Each of the new leases is effective June 1, 2014 with new monthly payments of an aggregate of $0.2 million, and an increase at the rate of the greater of 3% per annum or the Consumer Price Index (“CPI”) for the Los Angeles metropolitan area beginning on June 1, 2015. Both new leases provide for purchase/sell options of the facilities at fair market value beginning on June 1, 2021 and June 1, 2025. Also under both leases, the fair market value is to be agreed upon by both parties, or determined by a consensus of independent qualified appraisers. Lease expense for these new leases and the former leases until date of termination, recorded on a straight-line basis, was $0.8 million and $1.6 million for three and six months endedJune 30, 2015, respectively. Lease expense for these new leases and the former leases until date of termination, recorded on a straight-line basis, was $0.6 million and $1.3 million for three and six months endedJune 30, 2014, respectively.

Raymond R. Oneglia, who is the Vice Chairman of O&G Industries, Inc. (“O&G”), is a director of the Company. Currently the Company has a 30% interest in a joint venture with O&G as the sponsor involving a highway construction project for the State of Connecticut, with an estimated total contract value of approximately $362 million, scheduled for completion in 2016. Under this arrangement, O&G provides project-related equipment and services directly to the customer (on customary trade terms). In accordance with the joint venture agreement, payments to O&G for equipment and services for the three and six months ended June 30, 2015 were $3.2 million and $5.2 million, respectively. Payments to O&G for equipment and services for the three and six months endedJune 30, 2014 were $1.9 million and $3.4 million, respectively. O&G’s cumulative holdings of the Company’s stock were 500,000 shares at bothJune 30, 2015 and June 30, 2014, or 1.02% and 1.03%, respectively, of total common shares outstanding.

(15)     Separate Financial Information of Subsidiary Guarantors of Indebtedness

The Company’s obligation to pay principal and interest on its 7.625% senior unsecured notes due November 1, 2018, is guaranteed on a joint and several basis by substantially all of the Company’s existing and future subsidiaries that guarantee obligations under the Company’s Sixth Amended Credit Agreement (the “Guarantors”). The guarantees are full and unconditional and the Guarantors are 100%-owned by the Company.

The following supplemental condensed consolidating financial information reflects the summarized financial information of the Company as the issuer of the senior unsecured notes, the Guarantors and the Company’s non-guarantor subsidiaries on a combined basis.

23

CONDENSED CONSOLIDATING BALANCE SHEET - JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
ASSETS
Cash and Cash Equivalents	$	63,130	$	30,780	$	13,007	$	—	$	106,917
Restricted Cash		3,369		4,935		31,189		—		39,493
Accounts Receivable		432,447		1,180,502		39,656		(99,091)		1,553,514
Costs and Estimated Earnings in Excess of Billings		87,446		801,198		152		(72,316)		816,480
Deferred Income Taxes		2,323		15,629		—		—		17,952
Other Current Assets		51,069		49,382		38,448		(35,656)		103,243
Total Current Assets	$	639,784	$	2,082,426	$	122,452	$	(207,063)	$	2,637,599
Long-term Investments	$	—	$	—	$	—	$	—	$	—
Property and Equipment, net		108,970		424,659		4,204		—		537,833
Intercompany Notes and Receivables		—		183,867		—		(183,867)		—
Other Assets:
Goodwill		—		585,006		—		—		585,006
Intangible Assets, net		—		98,368		—		—		98,368
Investment in Subsidiaries		2,144,042		4		50		(2,144,096)		—
Other		80,149		10,230		—		(5,549)		84,830
	$	2,972,945	$	3,384,560	$	126,706	$	(2,540,575)	$	3,943,636
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Maturities of Long-term Debt	$	40,737	$	45,364	$	—	$	—	$	86,101
Accounts Payable		239,992		862,841		917		(140,520)		963,230
Billings in Excess of Costs and Estimated Earnings		97,399		176,263		34		(10,296)		263,400
Accrued Expenses and Other Current Liabilities		22,437		100,349		64,390		(20,978)		166,198
Total Current Liabilities	$	400,565	$	1,184,817	$	65,341	$	(171,794)	$	1,478,929
Long-term Debt, less current maturities		752,931		94,307		—		(40,586)		806,652
Deferred Income Taxes		142,279		7,914		—		—		150,193
Other Long-term Liabilities		111,290		1,994		—		—		113,284
Intercompany Notes and Advances Payable		152,397		—		31,470		(183,867)		—
Contingencies and Commitments		—		—		—		—		—
Stockholders’ Equity		1,413,483		2,095,528		29,895		(2,144,328)		1,394,578
	$	2,972,945	$	3,384,560	$	126,706	$	(2,540,575)	$	3,943,636

24

CONDENSED CONSOLIDATING BALANCE SHEET - DECEMBER 31, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
ASSETS
Cash and Cash Equivalents	$	75,087	$	36,764	$	23,732	$	—	$	135,583
Restricted Cash		3,369		5,274		35,727		—		44,370
Accounts Receivable		299,427		1,246,635		37,064		(103,622)		1,479,504
Costs and Estimated Earnings in Excess of Billings		70,344		700,362		152		(44,456)		726,402
Deferred Income Taxes		—		15,639		—		2,323		17,962
Other Current Assets		39,196		42,750		24,397		(37,608)		68,735
Total Current Assets	$	487,423	$	2,047,424	$	121,072	$	(183,363)	$	2,472,556
Long-term Investments		—		—		—		—		—
Property and Equipment, net		92,413		430,876		4,313		—		527,602
Intercompany Notes and Receivables		—		122,401		—		(122,401)		—
Other Assets:
Goodwill		—		585,006		—		—		585,006
Intangible Assets, net		—		100,254		—		—		100,254
Investment in Subsidiaries		2,154,562		19,519		50		(2,174,131)		—
Other		83,503		9,847		—		(5,453)		87,897
	$	2,817,901	$	3,315,327	$	125,435	$	(2,485,348)	$	3,773,315
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Maturities of Long-term Debt		34,776		46,516		—		—		81,292
Accounts Payable		186,958		716,851		3,749		(109,384)		798,174
Billings in Excess of Costs and Estimated Earnings		139,020		185,807		2,672		(8,203)		319,296
Accrued Expenses and Other Current Liabilities		33,018		95,177		58,571		(26,952)		159,814
Total Current Liabilities	$	393,772	$	1,044,351	$	64,992	$	(144,539)	$	1,358,576
Long-term Debt, less current maturities		712,460		112,060		—		(40,453)		784,067
Deferred Income Taxes		142,457		7,914		—		—		150,371
Other Long-term Liabilities		112,899		1,897		—		—		114,796
Intercompany Notes and Advances Payable		90,373		—		35,619		(125,992)		—
Contingencies and Commitments		—		—		—		—		—
Stockholders’ Equity		1,365,939		2,149,105		24,824		(2,174,363)		1,365,505
	$	2,817,900	$	3,315,327	$	125,435	$	(2,485,347)	$	3,773,315

25

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

THREE MONTHS ENDED JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	309,217	$	1,065,766	$	2,793	$	(65,338)	$	1,312,438
Cost of Operations		265,129		1,014,027		—		(65,338)		1,213,818
Gross Profit	$	44,088	$	51,739	$	2,793	$	—	$	98,620
General and Administrative Expenses		25,289		41,985		465		—		67,739
INCOME FROM CONSTRUCTION OPERATIONS	$	18,799	$	9,754	$	2,328	$	—	$	30,881
Equity in Earnings of Subsidiaries		6,586		—		—		(6,586)		—
Other (Expense) Income, net		(466)		431		135		—		100
Interest Expense		(10,134)		(855)		—		—		(10,989)
Income (Loss) before Income Taxes		14,785		9,330		2,463		(6,586)		19,992
Benefit (Provision) for Income Taxes		(3,008)		(4,121)		(1,086)		—		(8,215)
NET INCOME (LOSS)	$	11,777	$	5,209	$	1,377	$	(6,586)	$	11,777
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		(1,220)		—		—		1,220		—
Foreign currency translation		—		(1,146)		—		—		(1,146)
Change in fair value of investments		—		(74)		—		—		(74)
Change in fair value of interest rate swap		60		—		—		—		60
Total Other Comprehensive (Loss) Income	$	(1,160)	$	(1,220)	$	—	$	1,220	$	(1,160)
Total Comprehensive Income (Loss)	$	10,617	$	3,989	$	1,377	$	(5,366)	$	10,617

26

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

THREE MONTHS ENDED JUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	207,944	$	918,146	$	—	$	(41,580)	$	1,084,510
Cost of Operations		177,877		827,097		(8,415)		(41,580)		954,979
Gross Profit	$	30,067	$	91,049	$	8,415	$	—	$	129,531
General and Administrative Expenses		18,985		44,625		478		—		64,088
INCOME FROM CONSTRUCTION OPERATIONS	$	11,082	$	46,424	$	7,937	$	—	$	65,443
Equity in Earnings of Subsidiaries		31,748		—		—		(31,748)		—
Other (Expense) Income, net		(6,684)		(418)		128		—		(6,974)
Interest Expense		(9,809)		(1,048)		—		—		(10,857)
Income (Loss) before Income Taxes	$	26,337	$	44,958	$	8,065	$	(31,748)	$	47,612
Benefit (Provision) for Income Taxes		2,208		(18,062)		(3,213)		—		(19,067)
NET INCOME (LOSS)	$	28,545	$	26,896	$	4,852	$	(31,748)	$	28,545
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		340		—		—		(340)		—
Foreign currency translation		—		347		—		—		347
Change in fair value of investments		—		(7)		—		—		(7)
Change in fair value of interest rate swap		76		—		—		—		76
Total Other Comprehensive (Loss) Income	$	416	$	340	$	—	$	(340)	$	416
Total Comprehensive Income (Loss)	$	28,961	$	27,236	$	4,852	$	(32,088)	$	28,961

27

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

SIX MONTHS ENDED JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	545,509	$	1,950,869	$	7,084	$	(124,559)	$	2,378,903
Cost of Operations		474,962		1,839,121		—		(124,559)		2,189,524
Gross Profit	$	70,547	$	111,748	$	7,084	$	—	$	189,379
General and Administrative Expenses		50,324		87,151		939		—		138,414
INCOME FROM CONSTRUCTION OPERATIONS	$	20,223	$	24,597	$	6,145	$	—	$	50,965
Equity in Earnings of Subsidiaries		18,526		—		—		(18,526)		—
Other (Expense) Income, net		(2,535)		1,627		253		—		(655)
Interest Expense		(20,397)		(1,716)		—		—		(22,113)
Income (loss) before Income Taxes		15,817		24,508		6,398		(18,526)		28,197
Benefit (Provision) for Income Taxes		1,086		(9,817)		(2,563)		—		(11,294)
NET INCOME (LOSS)	$	16,903	$	14,691	$	3,835	$	(18,526)	$	16,903
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		(1,818)		—		—		1,818		—
Foreign currency translation		—		(1,734)		—		—		(1,734)
Change in fair value of investments		—		(84)		—		—		(84)
Change in fair value of interest rate swap		105		—		—		—		105
Total Other Comprehensive (Loss) Income		(1,713)		(1,818)		—		1,818		(1,713)
Total Comprehensive Income (Loss)	$	15,190	$	12,873	$	3,835	$	(16,708)	$	15,190

28

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

SIX MONTHS ENDED JUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	434,791	$	1,681,782	$	—	$	(76,830)	$	2,039,743
Cost of Operations		371,691		1,525,005		(15,001)		(76,830)		1,804,865
Gross Profit		63,100		156,777		15,001		—		234,878
General and Administrative Expenses		36,780		90,245		913		—		127,938
INCOME FROM CONSTRUCTION OPERATIONS		26,320		66,532		14,088		—		106,940
Equity in Earnings of Subsidiaries		47,029		—		—		(47,029)		—
Other (Expense) Income, net		(10,779)		184		248		—		(10,347)
Interest Expense		(19,826)		(1,862)		—		—		(21,688)
Income (Loss) before Income Taxes		42,744		64,854		14,336		(47,029)		74,905
Benefit (Provision) for Income Taxes		1,740		(26,339)		(5,822)		—		(30,421)
NET INCOME  (LOSS)	$	44,484	$	38,515	$	8,514	$	(47,029)	$	44,484
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		235		—		—		(235)		—
Change in pension benefit plans assets/liabilities		—		—		—		—		—
Foreign currency translation		—		61		—		—		61
Change in fair value of investments		—		174		—		—		174
Change in fair value of interest rate swap		157		—		—		—		157
Total Other Comprehensive (Loss) Income		392		235		—		(235)		392
Total Comprehensive Income (Loss)	$	44,876	$	38,750	$	8,514	$	(47,264)	$	44,876

29

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

SIX MONTHS ENDED JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Cash Flows from Operating Activities:
Net income (loss)	$	16,903	$	14,691	$	3,835	$	(18,526)	$	16,903
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		5,964		15,333		137		—		21,434
Equity in earnings of subsidiaries		(18,526)		—		—		18,526		—
Stock-based compensation expense		13,324		—		—		—		13,324
Excess income tax benefit from stock-based compensation		(162)		—		—		—		(162)
Adjustment of investments to fair value		—		—		—		—		—
Adjustment interest rate swap to fair value		—		—		—		—		—
Deferred income taxes		(177)		—		—		—		(177)
(Gain) loss on sale of investments		—		—		—		—		—
(Gain) loss on sale of property and equipment		29		(342)		—		—		(313)
Other long-term liabilities		(56)		98		—		—		42
Other non-cash items		1,881		(5,140)		—		—		(3,259)
Changes in other components of working capital		(159,846)		96,590		(16,294)		—		(79,550)
NET CASH (USED) PROVIDED BY OPERATING ACTIVITIES	$	(140,666)	$	121,230	$	(12,322)	$	—	$	(31,758)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases		—		(29,516)		(28)		—		(29,544)
Proceeds from sale of property and equipment		(21,505)		22,627		—		—		1,122
Proceeds from sale of available-for-sale securities		—		—		—		—		—
(Increase) decrease in intercompany advances		—		(101,660)		—		101,660		—
Change in restricted cash		—		339		4,538		—		4,877
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	$	(21,505)	$	(108,210)	$	4,510	$	101,660	$	(23,545)
Cash Flows from Financing Activities:
Proceeds from debt		473,362		128		—		—		473,490
Repayment of debt		(427,107)		(19,132)		—		—		(446,239)
Business acquisition-related payments		—		—		—		—		—
Excess income tax benefit from stock-based compensation		162		—		—		—		162
Issuance of common stock and effect of cashless exercise		(776)		—		—		—		(776)
Debt Issuance Costs		—		—		—		—		—
Increase (decrease) in intercompany advances		104,573		—		(2,913)		(101,660)		—
NET CASH (USED) PROVIDED BY FINANCING ACTIVITIES	$	150,214	$	(19,004)	$	(2,913)	$	(101,660)	$	26,637
Net (Decrease) Increase in Cash and Cash Equivalents		(11,957)		(5,984)		(10,725)		—		(28,666)
Cash and Cash Equivalents at Beginning of Year		75,087		36,764		23,732		—		135,583
Cash and Cash Equivalents at End of Period	$	63,130	$	30,780	$	13,007	$	—	$	106,917

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CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

SIX MONTHS ENDED JUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Cash Flows from Operating Activities:
Net income (loss)	$	44,484	$	38,515	$	8,514	$	(47,029)	$	44,484
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		4,866		25,077		135		—		30,078
Equity in earnings of subsidiaries		(47,029)		—		—		47,029		—
Stock-based compensation expense		9,920		—		—		—		9,920
Deferred income taxes		4,672		(4,736)		—		—		(64)
(Gain) loss on sale of investments		1,786		—		—		—		1,786
(Gain) loss on sale of property and equipment		—		427		—		—		427
Other long-term liabilities		6,624		(1,065)		—		—		5,559
Other non-cash items		(3,620)		5,182		—		—		1,562
Changes in other components of working capital		(53,928)		(104,577)		3,318		—		(155,187)
NET CASH PROVIDED (USED) BY OPERATING ACTIVITIES	$	(32,225)	$	(41,177)	$	11,967	$	—	$	(61,435)
Cash Flows from Investing Activities:
Acquisition of property and equipment		(16,715)		(10,015)		—		—		(26,730)
Proceeds from sale of property and equipment		—		1,906		—		—		1,906
Proceeds from sale of available-for-sale securities		44,497		—		—		—		44,497
Change in restricted cash		15,465		(10)		(15,488)		—		(33)
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	$	43,247	$	(8,119)	$	(15,488)	$	—	$	19,640
Cash Flows from Financing Activities:
Proceeds from debt		685,079		32,405		—		—		717,484
Repayment of debt		(604,773)		(44,509)		—		—		(649,282)
Business acquisition related payments		(1,226)		(34)		—		—		(1,260)
Issuance of common stock and effect of cashless exercise		(1,531)		—		—		—		(1,531)
Debt issuance costs		—		(3,681)		—		—		(3,681)
Increase (decrease) in intercompany advances		(96,181)		97,506		(1,325)		—		—
NET CASH (USED) PROVIDED BY FINANCING ACTIVITIES	$	(18,632)	$	81,687	$	(1,325)	$	—	$	61,730
Net Increase (Decrease) in Cash and Cash Equivalents		(7,610)		32,391		(4,846)		—		19,935
Cash and Cash Equivalents at Beginning of Year		88,995		18,031		12,897		—		119,923
Cash and Cash Equivalents at End of Period	$	81,385	$	50,422	$	8,051	$	—	$	139,858

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

The following discusses our financial position at June 30, 2015 and the results of our operations for the three and six months endedJune 30, 2015 and should be read in conjunction with: (1) the unaudited consolidated condensed financial statements and notes contained herein, and (2) the audited consolidated financial statements and accompanying notes to our Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

Overview

We were incorporated in 1918 as a successor to businesses that had been engaged in providing construction services since 1894. We provide diversified general contracting, construction management and design-build services to private customers and public agencies throughout the world. Our construction business is conducted through three basic segments or operations: Civil, Building, and Specialty Contractors. Our Civil segment specializes in public works construction and the repair, replacement and reconstruction of infrastructure, including highways, bridges, mass-transit systems and water and wastewater treatment facilities, primarily in the western, midwestern, northeastern, and mid-Atlantic regions of the United States. Our Building segment has significant experience providing services to a number of specialized building markets, including the hospitality and gaming, transportation, healthcare, municipal and commercial offices, sports and entertainment, educational, correctional facilities, biotech, pharmaceutical and high-tech markets. Our Specialty Contractors segment specializes in plumbing, HVAC, electrical, mechanical, and pneumatically placed concrete for a full range of civil and building construction projects in the industrial, commercial, hospitality and gaming, and transportation end markets, among others.

The contracting and management services that we provide consist of general contracting, pre-construction planning and comprehensive management services, including planning and scheduling the 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. We also offer self-performed construction services including site work, concrete forming and placement, steel erection, electrical, mechanical, plumbing, and HVAC. We provide these services by using traditional general contracting arrangements, such as fixed price, guaranteed maximum price and cost plus fee contracts and, to a lesser extent, construction management or design-build contracting arrangements. We  occasionally enter into joint venture arrangements with other contractors for certain construction projects. Each of the joint venture participants is usually committed to supply a predetermined percentage of capital, as required, and to share in a predetermined percentage of the income or loss of the project. Generally, each joint venture participant is fully liable for the obligations of the joint venture.

We believe our leadership position as the contractor of choice for large, complex civil and building projects will support our long-term backlog growth. We continue to strategically focus on growing our business by pursuing and obtaining higher-margin public works projects and building projects on an opportunistic basis. In addition, we continue to leverage our unique, substantial self-performance and schedule control capabilities to obtain additional large-scale civil and building awards. We have capitalized on this leadership position and these synergies with various recent significant new awards and pending awards (see Backlog Analysison page 34).

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The following tables set forth our consolidated condensed statement of operations:

	Consolidated Results of Operations
					% Change					% Change
	Three Months Ended				Favorable	Six Months Ended				Favorable
	June 30,				(Unfavorable)	June 30,				(Unfavorable)
	2015		2014		2015 vs 2014	2015		2014		2015 vs 2014
	(In thousands)					(In thousands)
Revenues	$	1,312,438	$	1,084,510	21.0%	$	2,378,903	$	2,039,743	16.6%
Cost of operations		1,213,818		954,979	(27.1)%		2,189,524		1,804,865	(21.3)%
Gross profit		98,620		129,531	(23.9)%		189,379		234,878	(19.4)%
General and administrative expenses		67,739		64,088	(5.7)%		138,414		127,938	(8.2)%
Income from construction operations		30,881		65,443	(52.8)%		50,965		106,940	(52.3)%
Other income (expense), net		100		(6,974)	101.4%		(655)		(10,347)	93.7%
Interest expense		(10,989)		(10,857)	(1.2)%		(22,113)		(21,688)	(2.0)%
Income before income taxes		19,992		47,612	(58.0)%		28,197		74,905	(62.4)%
Provision for income taxes		(8,215)		(19,067)	56.9%		(11,294)		(30,421)	62.9%
Net income (loss)	$	11,777	$	28,545	(58.7)%	$	16,903	$	44,484	(62.0)%

	Consolidated Results of Operations
	Three Months Ended June 30,		Six Months Ended June 30,
	2015	2014	2015	2014
	(As a percentage of Revenues)		(As a percentage of Revenues)
Revenues	100.0%	100.0%	100.0%	100.0%
Cost of operations	92.5%	88.1%	92.0%	88.5%
Gross profit	7.5%	11.9%	8.0%	11.5%
General and administrative expenses	5.2%	5.9%	5.8%	6.3%
Income from construction operations	2.4%	6.0%	2.1%	5.2%
Other income (expense), net	0.0%	(0.6)%	(0.0)%	(0.5)%
Interest expense	(0.8)%	(1.0)%	(0.9)%	(1.1)%
Income (loss) before income taxes	1.5%	4.4%	1.2%	3.6%
(Provision) benefit for income taxes	(0.6)%	(1.8)%	(0.5)%	(1.5)%
Net income (loss)	0.9%	2.6%	0.7%	2.1%

Revenues were $1,312.4 million and $2,378.9 million for the three and six months ended June 30, 2015 compared to $1,084.5 million and $2,039.7 million for the same periods in 2014. Income from construction operations was $30.9 million and $51.0 million for the three and six months ended June 30, 2015 compared to $65.4 million and $106.9 million for the same periods in 2014. Net income for the three and six months ended June 30, 2015 was $11.8 million and $16.9 million compared to $28.5 million and $44.5 million for the same periods in 2014. Basic and diluted earnings per share (“EPS”) were both$0.24 for the three months ended June 30, 2015, compared to basic and diluted EPS of $0.59 and $0.58 for the same period in 2014. Basic and diluted EPS were $0.35 and $0.34 for the six months ended June 30, 2015, compared to basic and diluted EPS of $0.92 and $0.91 for the same period in 2014.

Revenues increased approximately $227.9 million, or 21.0%, and $339.2 million, or 16.6%, during the three and six months endedJune 30, 2015 compared to the same periods in 2014.  The increase was due primarily to increased activity on a runway reconstruction project in New York, various bridge projects in the Midwest, mass-transit projects in New York and California, various building projects in California,  and hospitality and gaming projects in Mississippi and California. The increase was partially offset by decreased activity on various smaller electrical projects in the southern U.S. and certain tunnel projects on the West Coast.

The decrease in net income for the three and six months endedJune 30, 2015 compared to the same periods in 2014, was due primarily to a combination of net favorable adjustments to the estimated recoveries on two Civil projects in the second quarter of 2014 and an unfavorable adjustment in the second quarter of 2015 to the estimated cost to complete for an office building project on the East Coast. To a lesser extent, the decrease was also due to the decreased activity on certain tunnel projects on the West Coast and certain higher-margin projects.

At June 30, 2015, working capital was $1,158.7 million, an increase of $44.7 million from $1,114.0 million at December 31, 2014.

33

Backlog Analysis

Our backlog of uncompleted construction work at June 30, 2015 was approximately $7.7 billion compared to $7.8 billion at December 31, 2014. During the first six months of 2015, we booked various new awards and adjustments to existing contracts into backlog across each of our business segments. Significant new awards and adjustments included $455 million of initial funding for a technology research and development facility project and $72 million of incremental funding for a biotechnology facility project in California; a $239 million hospitality building project, a $117 million mixed-use building project, and a $58 million highway improvement project in Pennsylvania; three electrical projects totaling $97 million and a $56 million tunnel project in New York; and a $50 million educational building project in Mississippi.

In addition to our existing backlog, we continue to have a significant volume of pending contract awards, including up to $2.3 billion in various future phases of the Hudson Yards project, approximately $1.0 billion for five building projects in California, and approximately $1.0 billion in various other contracts. We anticipate booking many of these and other pending awards into backlog over the next several quarters. We continue tracking several large-scale civil and building prospects for both public and private sector customers as we further leverage our self-performance and schedule control capabilities.

The following table provides an analysis of our backlog by business segment for June 30, 2015:

	Backlog at		New Business		Revenues		Backlog at
	December 31, 2014		Awarded (a)		Recognized		June 30, 2015
	(in millions)
Civil	$	3,563.2	$	474.3	$	(908.9)	$	3,128.6
Building		2,187.8		1,145.6		(850.2)		2,483.2
Specialty Contractors		2,080.7		676.8		(619.8)		2,137.7
Total	$	7,831.7	$	2,296.7	$	(2,378.9)	$	7,749.5

(a) New business awarded consists of the original contract price of projects added to our backlog plus or minus subsequent changes to the estimated total contract price of existing contracts.

Critical Accounting Policies

Our significant accounting policies are described in Note 1 — Description of Business and Summary of Significant Accounting Policies of the Notes to Consolidated Financial Statements in Part IV, Item 15. Exhibits and Financial Statement Schedules, included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014. Our critical accounting policies are also identified and discussed in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations of our Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

Recently Issued Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update (“ASU”) ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition. This ASU addresses when an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In July 2015, FASB delayed the effective date by one year and is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period, using one of two retrospective application methods. Early application would be permitted only as of annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently evaluating the effect that the adoption of this ASU will have on its financial statements.

In June 2014, the FASB issued ASU No. 2014-12, Compensation — Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, clarifying the recognition timing of expense associated with certain performance based stock awards when the performance target that affects vesting could be achieved after the requisite service period. This ASU is an update to FASB ASC Topic 718 and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 with earlier adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.

In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810). The goal of this ASU is to reduce the potentially distortive impact on reporting entities’ consolidated financial statements resulting from the consolidation of certain legal entities, including joint ventures and variable interest entities. This ASU is effective for fiscal years, and interim periods within those years,

34

beginning after December 15, 2015. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements. 

In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30). This ASU requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on the Company’s financial statements. 

Use of and changes in estimates

The Company’s construction business involves making significant estimates and assumptions in the normal course of business relating to its contracts and its joint venture contracts. Management focuses on evaluating the performance of contracts individually. These estimates can vary in the normal course of business as projects progress, when estimated productivity assumptions change based on experience to date and uncertainties are resolved. Change orders and claims, as well as changes in related estimates of costs to complete, are considered revisions in estimates. The Company uses the cumulative catch-up method applicable to construction contract accounting to account for revisions in estimates. The impact on operating margin in a reporting period and future periods from a change in estimate will depend on the stage of contract completion.

During the three months ended June 30, 2015, the Company’s results of operations were negatively impacted because of an unfavorable change in the estimated cost to complete for a certain Building segment project. This change in estimate resulted in a $14.7 million decrease in income from construction operations, an $8.7 million decrease in net income, and a $0.17 decrease in diluted EPS during the three months ended June 30, 2015.

During the three months ended June 30, 2014, the Company’s results of operations were positively impacted by a net $14.8 million because of changes in the estimated cost recovery on two Civil segment projects based on certain legal rulings issued during the period. One project had a favorable ruling, resulting in a $24.2 million increase, and the second project had an unfavorable ruling, resulting in a $9.4 million decrease. Together, these changes in estimates resulted in a $14.8 million increase in income from construction operations, an $8.8 million increase in net income, and an $0.18 increase in diluted EPS during the three and six months ended June 30, 2014.

These changes were the only changes in estimates considered material to the Company’s results of operations during the periods presented herein.

Results of Operations

Comparison of the Three andSix Months EndedJune 30, 2015 with the Three and Six Months EndedJune 30, 2014

Revenues

The following table summarizes our revenues by business segment with the prior year.

	Revenues for the
	Three Months Ended June 30,
(dollars in millions)	2015		2014		$ Change		% Change
Civil	$	534.2	$	390.5	$	143.7	36.8	%
Building		451.4		372.0		79.4	21.3	%
Specialty Contractors		326.8		322.0		4.8	1.5	%
Total	$	1,312.4	$	1,084.5	$	227.9	21.0	%
	Revenues for the
	Six Months Ended June 30,
(dollars in millions)	2015		2014		$ Change		% Change
Civil	$	908.9	$	755.7	$	153.2	20.3	%
Building		850.2		669.9		180.3	26.9	%
Specialty Contractors		619.8		614.1		5.7	0.9	%
Total	$	2,378.9	$	2,039.7	$	339.2	16.6	%

35

Civil Segment

Civil segment revenues increased$143.7 million, or 36.8%, and 153.2 million, or 20.3%, for the three and six months endedJune 30, 2015 compared to the same periods in 2014. The increase was due primarily to increased activity on a runway reconstruction project in New York, various bridge projects in the Midwest, and mass-transit projects in New York and California. The increase was partially offset by decreased activity on certain tunnel projects on the West Coast and on certain higher-margin projects.

Building Segment

Building segment revenues increased$79.4 million, or 21.3%, and $180.3 million, or 26.9%, for the three and six months endedJune 30, 2015 compared to the same periods in 2014. The increase was due primarily to increased activity on various building projects in California, and hospitality and gaming projects in Mississippi and California. The increase was partially offset by decreased activity due to a multi-unit residential project in Pennsylvania that completed last year.

Specialty Contractors Segment

Specialty Contractors segment revenues increased $4.8 million, or 1.5%, and $5.7 million, or 0.9%, for the three and six months ended June 30, 2015 compared to the same periods in 2014. The increase was due primarily to increased activity on mass-transit and other electrical and mechanical projects in New York (including at Hudson Yards). The increase was partially offset by decreased activity on various smaller electrical projects in the southern U.S., electrical projects at the World Trade Center and mechanical projects at the United Nations in New York, and two signal system modernization projects in New York.

Income from Construction Operations

The following table summarizes our income from construction operations by business segment.

	Income from Construction Operations
	and Operating Margins
	Three Months Ended June 30,								Change in
	2015				2014				Amount				Margin
(dollars in millions)	Amount		Margin		Amount		Margin		$		%		%
Civil	$	46.3	8.7	%	$	58.0	14.8	%	$	(11.7)	(20.2)	%	(6.1)	%
Building		(12.5)	(2.8)	%		7.7	2.0	%		(20.2)	(262.3)	%	(4.8)	%
Specialty Contractors		13.7	4.2	%		12.6	3.9	%		1.1	8.7	%	0.3	%
		47.5	3.6	%		78.3	7.2	%		(30.8)	(39.3)	%	(3.6)	%
Corporate		(16.6)	(1.2)	%		(12.9)	(1.2)	%		(3.7)	(28.7)	%	—	%
Income from construction operations	$	30.9	2.4	%	$	65.4	6.0	%	$	(34.5)	(52.8)	%	(3.6)	%
	Income from Construction Operations
	and Operating Margins
	Six Months Ended June 30,								Change in
	2015				2014				Amount				Margin
(dollars in millions)	Amount		Margin		Amount		Margin		$		%		%
Civil	$	76.9	8.5	%	$	102.3	13.5	%	$	(25.4)	(24.8)	%	(5.0)	%
Building		(14.9)	(1.8)	%		9.5	1.4	%		(24.4)	(256.8)	%	(3.2)	%
Specialty Contractors		24.3	3.9	%		20.5	3.3	%		3.8	18.5	%	0.6	%
		86.3	3.6	%		132.3	6.5	%		(46.0)	(34.8)	%	(2.9)	%
Corporate		(35.3)	(1.5)	%		(25.4)	(1.3)	%		(9.9)	(39.0)	%	(0.2)	%
Income from construction operations	$	51.0	2.1	%	$	106.9	5.2	%	$	(55.9)	(52.3)	%	(3.1)	%

Civil Segment

Civil segment income from construction operations decreased$11.7 million, or 20.2%, and $25.4 million, or 24.8%, for the three and six months endedJune 30, 2015 compared to the same periods in 2014. The decrease was due primarily to net favorable adjustments to the estimated recoveries on two projects in the second quarter of 2014, based on legal rulings issued during that period. The decrease was also due to the decreased activity on certain tunnel projects on the West Coast and certain higher-margin projects, as discussed above under Revenues.  

36

Civil segment operating margin declined to 8.7% and 8.5% for the three and six months endedJune 30, 2015 compared to 14.8% and 13.5% for the same periods in 2014. The reduction in Civil segment operating margin was due primarily to the reasons discussed in the preceding paragraph.

Building Segment

Building segment income from construction operations decreased $20.2 million, or 262.3%, and $24.4 million, or 256.8%, for the three and six months endedJune 30, 2015 compared to the same periods in 2014. The decrease was due primarily to an unfavorable adjustment in the second quarter of 2015 to the estimated cost to complete for a certain office building project on the East Coast, as well as favorable project adjustments in the second quarter of 2014 on three projects, including an electrical project in Afghanistan.

Building segment operating margin declined to -2.8% and -1.8% for the three and six months endedJune 30, 2015 compared to 2.0% and 1.4% for the same periods in 2014. The reduction in Building segment operating margin was due primarily to the reasons discussed in the preceding paragraph.

Specialty Contractors Segment

Specialty Contractors segment income from construction operations increased $1.1 million, or 8.7%, and $3.8 million, or 18.5%, for the three and six months ended June 30, 2015 compared to the same periods in 2014. The increase was due primarily to the volume changes discussed above under Revenues.

Specialty Contractors segment operating margin increased to 4.2% and 3.9% for the three and six months endedJune 30, 2015 compared to 3.9% and 3.3% for the same periods in 2014. The increase in Specialty Contractors segment operating margin was due primarily to the reasons discussed in the preceding paragraph.

Corporate

Corporate general and administrative expenses increased $3.7 million, or 28.7%, and $9.9 million, or 39.0%, for the three and six months endedJune 30, 2015 compared to the same periods in 2014. The increase for the second quarter was primarily due to higher legal related expenses, depreciation, and the timing of employee health benefit expenses. The increase for the six months ended June 30, 2015 was primarily due to the preceding reasons, as well as increased performance-based incentive compensation expense.

Consolidated Other Income, Interest Expense and Provision for Income Taxes

(dollars in millions)	June 30, 2015		June 30, 2014		$ Change		% Change
Three Months Ended
Other income (expense), net	$	0.1	$	(7.0)	$	7.1	(101.4)	%
Interest expense		11.0		10.9		0.1	0.9	%
Provision for income taxes		8.2		19.1		(10.9)	(57.1)	%
(dollars in millions)	June 30, 2015		June 30, 2014		$ Change		% Change
Six Months Ended
Other income (expense), net	$	(0.7)	$	(10.3)	$	9.6	(93.2)	%
Interest expense		22.1		21.7		0.4	1.8	%
Provision for income taxes		11.3		30.4		(19.1)	(62.8)	%

Other income (expense), net improved$7.1 million and $9.6 million for the three and six months endedJune 30, 2015 compared to the same periods in 2014. This was primarily due to a reduction in expense recognized for changes in contingent consideration liabilities associated with historical acquisitions. Additionally, there were losses recognized on the sale of our auction rate securities and expenses related to the refinancing of our credit facility in the second quarter of 2014.

Interest expense increased$0.1 million and $0.4 million for the three and six months endedJune 30, 2015 compared to the same periods in 2014.

Provision for income taxes was $8.2 million and $11.3 million for three and six months endedJune 30, 2015 compared to income tax provision of $19.1 million and $30.4 million for the same periods in 2014.The effective income tax rate was 41.1% and 40.1%for the three and six months endedJune 30, 2015 compared to 40.0% and 40.6% for the same periods in 2014. The changes in the effective

37

tax rate for the three andsix months ended June 30, 2015 compared to the same periods in 2014, were primarily due to increased activities in higher tax rate jurisdictions. The remaining changes are a result of discrete tax item adjustments.

Liquidity and Capital Resources

Cash and Working Capital

At June 30, 2015 and December 31, 2014, cash held by us and available for general corporate purposes was $48.4 million and $40.8 million, respectively. Our proportionate share of cash held by joint ventures and available only for joint venture-related uses, including distributions to joint venture partners, was $58.5 million and $94.7 million at June 30, 2015 and December 31, 2014, respectively, and our restricted cash was $39.5 million and $44.4 million at June 30, 2015 and December 31, 2014, respectively. We believe that our cash flows will be sufficient to satisfy our currently anticipated cash requirements through at least the next 12 months.

We do not believe that it is likely we will be called upon to contribute significant additional capital in the event of default by any of our partners. We require each partner in the joint ventures in which we participate to accept joint and several responsibility for all obligations of the joint venture. Prior to forming a joint venture, we conduct a thorough analysis of the prospective partner to determine its capabilities, specifically relating to construction expertise, track record for delivering a quality product on time, reputation in the industry, as well as financial strength and available liquidity. We utilize a number of resources to verify a potential joint venture partner’s financial condition, including credit rating reports and financial information contained in its audited financial statements. We specifically review a potential partner’s available liquidity and bonding capacity. In the event we are concerned with the financial viability of a potential partner, we will require substantial initial cash contributions upon inception of the joint venture to mitigate the risk that we would be required to cover a disproportionate share of the joint venture’s future cash needs.

The majority of our joint venture contracts are for various government agencies that typically require the joint venture and/or our partners to complete a thorough pre-qualification process. This pre-qualification process typically includes the verification of each partner’s financial condition and capacity to perform the work, as well as the issuance of performance bonds by surety companies who also independently verify each partner’s financial condition.

A summary of cash flows for each of the six months endedJune 30, 2015 and 2014 is set forth below:

	Six Months Ended June 30,
(in millions)		2015		2014
Cash flows from:
Operating activities	$	(31.7)	$	(61.4)
Investing activities		(23.5)		19.6
Financing activities		26.6		61.7
Net (decrease) increase in cash		(28.6)		19.9
Cash at beginning of year		135.5		119.9
Cash at end of period	$	106.9	$	139.8

During the six months endedJune 30, 2015, we used$31.7 million in cash from operating activities.In the first quarter of 2015 we received full and final payments related to settlements reached on the MGM City Center matter and on a separate more recently completed building project. Because of strong collections in December 2014, we were required to make substantial payments to subcontractors and other vendors early in the first quarter of 2015. We funded significant working capital associated with unapproved change orders and receivables resulting from higher revenue on building and civil projects partially offset by increased accounts payable. We used $23.5 million in cash from investing activities, due primarily to the acquisition of property and equipment of $29.5 million offset by the sale of property and construction equipment of $1.1 million. We received $26.6 million in cash from financing activities, due primarily to increased borrowings under our Credit Facility offset by cash used for scheduled debt repayments.

At June 30, 2015, we had working capital of $1,158.7 million, a ratio of current assets to current liabilities of 1.78, and a ratio of debt to equity of 0.64 compared to working capital of $1,114.0 million, a ratio of current assets to current liabilities of 1.82 and a ratio of debt to equity of 0.63 at December 31, 2014.

38

Long-term Debt

Debt was $892.8 million at June 30, 2015, an increase of $27.4 million from $865.4 million at December 31, 2014,  due primarily to a net increase in borrowings of $55.0 million on the revolving line of credit offset by net reductions of $27.6 million in other debt. We utilized the revolving facility for outstanding letters of credit in the amount of $0.2 million. Accordingly, at June 30, 2015, we had $114.8 million available to borrow under our credit agreement. We believe that our financial position and credit arrangements are sufficient to support our current backlog and anticipated new work.

Excluding the outstanding borrowings of $185.0 million on our revolving line of credit, the unsecured senior notes of $298.9 million and our $235.0 million term loan, the remaining balance of $173.9 million of our outstanding debt is generally secured by the underlying assets. Our debt to equity ratio was 0.64 as of June 30, 2015 compared to 0.63 as of December 31, 2014.

On June 5, 2014, the Company entered into the Credit Facility, restructuring its former $300 million revolving credit facility and $200 million Term Loan. All outstanding amounts under the Fifth Amended and Restated Credit Agreement were repaid in full using proceeds of the Credit Facility. The new agreement provides for a $300 million revolving credit facility (the “Revolving Credit Facility”) and a $250 million term loan (the “Term Loan”) with Bank of America, N.A. as administrative agent, Swing Line Lender and L/C Issuer and a syndicate of other lenders. The Term Loan principal is to be repaid on a quarterly basis, with 6.0% of the original total outstanding principal repaid in year 1, 9.0% in year 2, 12.0% in year 3, 15.0% in year 4 and 13.5% in year 5 along with a balloon payment of the remaining 44.5%.  Borrowings under the Revolving Credit Facility will bear interest based either on Bank of America’s prime lending rate or the London Interbank Offered Rate (“LIBOR”) plus an applicable margin. Borrowings under the Term Loan bear interest based on LIBOR plus an applicable margin.Included in the Credit Facility is a special provision allowing an additional accordion provision, which the Company may opt to utilizeat a future date to increase either the Revolving Credit Facility or establish one or more new term loan commitments, up to an aggregate amount not to exceed $300 million. The Credit Facility provides a sublimit for the issuance of letters of credit up to the aggregate amount of $150 million. Both the Revolving Credit Facility and the Term Loan mature on June 5, 2019. 

As of the filing date of this Form 10-Q, we are in compliance and expect to continue to be in compliance with the financial covenants under the Credit Facility.

There were no other material changes in our contractual obligations during the three months ended June 30, 2015.

Off-Balance Sheet Arrangements

We do not have financial partnerships with unconsolidated entities, such as entities often referred to as structured finance or special purpose entities which are often established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes, except that we participate in one variable interest entity. This entity does not have and is not reasonably likely to have a material current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources. Accordingly, we are not exposed to any financing, liquidity, market or credit risk that could arise from such relationships.

Forward-looking Statements

The statements contained in this Management’s Discussion and Analysis of the Consolidated Condensed Financial Statements on Form 10-Q that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including without limitation, statements regarding our management’s expectations, hopes, beliefs, intentions or strategies regarding the future. These forward-looking statements are based on our current expectations and beliefs concerning future developments and their potential effects on us. Our expectations, beliefs and projections are expressed in good faith and we believe there is a reasonable basis for them. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to:

· our ability to win new contracts and convert backlog into revenue;

· our ability to successfully and timely complete construction projects;

· our ability to realize the anticipated economic and business benefits of our acquisitions and our strategy to assemble and operate a Specialty Contractors business segment;

· the potential delay, suspension, termination or reduction in scope of a construction project;

· the continuing validity of the underlying assumptions and estimates of total forecasted project revenues, costs and profits and project schedules;

· the outcomes of pending or future litigation, arbitration or other dispute resolution proceedings;

· the availability of borrowed funds on terms acceptable to us;

39

· the ability to retain certain members of management;

· the ability to obtain surety bonds to secure our performance under certain construction contracts;

· possible labor disputes or work stoppages within the construction industry;

· changes in federal and state appropriations for infrastructure projects and the impact of changing economic conditions on federal, state and local funding for infrastructure projects;

· possible changes or developments in international or domestic political, social, economic, business, industry, market and regulatory conditions or circumstances;

· actions taken or not taken by third parties including our customers, suppliers, business partners, and competitors and legislative, regulatory, judicial and other governmental authorities and officials; and

· other risks and uncertainties discussed under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2014 filed with the Securities and Exchange Commission on February 26, 2015.

We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

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, 2014, filed with the Securities and Exchange Commission on February 26, 2015.

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 Controls 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

From time to time in the ordinary course of business, we are subject to claims, asserted or unasserted, or named as a party to lawsuits or investigations. Litigation can be expensive and disruptive to normal business operations. Moreover, the results of legal proceedings cannot be predicted with any certainty and, in the case of more complex legal proceedings, the results are difficult to predict at all. We disclosed information about certain of our legal proceedings in Part I, Item 3 of our Annual Report on Form 10-K for the year ended December 31, 2014. For an update to those disclosures, see Note 7 — Contingencies and Commitments to Consolidated Condensed Financial Statements.

Item 1A. Risk Factors

Information regarding risk factors affecting our business is discussed in our Annual Report on Form 10-K for the year ended December 31, 2014. There have been no material changes from those risk factors during the six months endedJune 30, 2015.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

40

Item 3. Defaults Upon Senior Securities

None.

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.

41

Item 6. Exhibits

Exhibit 3.Articles of Incorporation and By-laws
	3.1	Restated Articles of Organization (incorporated by reference to Exhibit 4 to Form S-2 (File No. 33-28401) filed on April 28, 1989).
	3.2	Articles of Amendment to the Restated Articles of Organization of Tutor Perini Corporation (incorporated by reference to Exhibit 3.2 to Form S-1 (File No. 333-111338) filed on December 19, 2003).
	3.3	Articles of Amendment to the Restated Articles of Organization of Tutor Perini Corporation (incorporated by reference to Exhibit 3.1 to Form 8-K filed on April 12, 2000).
	3.4	Articles of Amendment to the Restated Articles of Organization of Tutor Perini Corporation (incorporated by reference to Exhibit 3.1 to Form 8-K filed on September 11, 2008).
	3.5	Articles of Amendment to the Restated Articles of Organization of Tutor Perini Corporation (incorporated by reference to Exhibit 3.5 to Form 10-Q filed on August 10, 2009).
	3.6	Second Amended and Restated By-laws of Tutor Perini Corporation (incorporated by reference to Exhibit 3.1 to Form 8-K filed on November 24, 2009).
Exhibit 31.1		Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 — filed herewith.
Exhibit 31.2		Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 — filed herewith.
Exhibit 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 — filed herewith.
Exhibit 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 — filed herewith.
Exhibit 95		Mine Safety Disclosure — filed herewith.
Exhibit 101.INS		XBRL Instance Document.
Exhibit 101.SCH		XBRL Taxonomy Extension Schema Document.
Exhibit 101.CAL		XBRL Taxonomy Extension Calculation Linkbase Document.
Exhibit 101.LAB		XBRL Taxonomy Extension Label Linkbase Document.
Exhibit 101.PRE		XBRL Taxonomy Extension Presentation Linkbase Document.
Exhibit 101.DEF		XBRL Taxonomy Extension Definition Linkbase Document.

42

SIGNATURES

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

	Tutor Perini Corporation
	Registrant
Date: August 6, 2015	/s/Michael J. Kershaw
	Michael J. Kershaw,
	Executive Vice President and Chief Financial Officer
	Duly Authorized Officer and Principal Financial Officer

43

EX-31.1

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

I, Ronald N. Tutor, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Tutor Perini Corporation (the “registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2015	/s/Ronald N. Tutor
	Ronald N. Tutor
	Chairman and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

I, Michael J. Kershaw, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Tutor Perini Corporation (the “registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2015	/s/Michael J. Kershaw
	Michael J. Kershaw
	Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 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

In connection with the quarterly report of Tutor Perini Corporation (the “Company”) on Form 10-Q for the period ending June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Ronald N. Tutor, Chairman and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

ovemb
Date: August 6, 2015	/s/Ronald N. Tutor
	Ronald N. Tutor
	Chairman and Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to Tutor Perini Corporation and will be retained by Tutor Perini Corporation and furnished to the Securities and Exchange Commissionor its staff upon request.

EX-32.2

Exhibit 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

In connection with the quarterly report of Tutor Perini Corporation (the “Company”) on Form 10-Q for the period ending June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michael J. Kershaw, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

ovem
Date: August 6, 2015	/s/Michael J. Kershaw
	Michael J. Kershaw
	Executive Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Tutor Perini Corporation and will be retained by Tutor Perini Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

EX-95

Exhibit 95

MINE SAFETY DISCLOSURE

Section 1503 of the Dodd-Frank Wall Street Reform and Consumer Protection 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 (“MSHA”). 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. Due to timing and other factors, the data may not agree with the mine data retrieval system maintained by MSHA.

The following table provides information for the 2nd Quarter ending June 30, 2015.

Mine (1)	Mine Act §104 Violations (2)	Mine Act §104 (b) Orders (3)	Mine Act §104 (d) Citations and Orders (4)	Mine Act §110 (b)(2) Violations (5)	Mine Act §107 (a) Orders (6)	Proposed Assessments from MSHA (In dollars ($)		Mining Related Fatalities	Mine Act §104€ Notice (yes/no) (7)	Pending Legal Action before Federal Mine Safety and Health Review Commission (yes/no)
2nd Quarter Ending June 30, 2015
Barrick Cortez Inc.	-	-	-	-	-	$	-	-	No	No
Gibson  South	-	-	-	-	-	$	-	-	No	No
Riveredge Mine	-	-	-	-	-	$	-	-	No	No
White Oak Mine No. 1	-	-	-	-	-	$	-	-	No	No
Riverview	-	-	-	-	-	$	-	-	No	No
Sugar Camp 1	-	-	-	-	-	$	-	-	No	No
Buchanan Mine #1	1	-	-	-	-	$	150	-	No	No
Leer Mine	1	-	-	-	-	$	100	-	No	No

(1) United States mines.

(2) The total number of violations received from MSHA under §104 of the Mine Act, which includes citations for health or safety standards that could significantly and substantially contribute to a serious injury if left unabated.

(3) The total number of orders issued by MSHA under §104(b) of the Mine Act, which represents a failure to abate a citation under §104(a) within the period of time prescribed by MSHA.

(4) The total number of citations and orders issued by MSHA under §104(d) of the Mine Act for unwarrantable failure to comply with mandatory health or safety standards.

(5) The total number of flagrant violations issued by MSHA under §110(b)(2) of the Mine Act.

(6) The total number of orders issued by MSHA under §107(a) of the Mine Act for situations in which MSHA determined an imminent danger existed.

(7) A written notice from the MSHA regarding a pattern of violations, or a potential to have such pattern under §104(e) of the Mine Act.

XML

Goodwill and Intangible Assets (Schedule of Indefinite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Trade Names [Member]
Indefinite-lived intangible assets
Cost	$ 117,600	$ 117,600
Accumulated Impairment Charge	(67,190)	(67,190)
Carrying Value	50,410	50,410
Contractor License [Member]
Indefinite-lived intangible assets
Cost	6,000	6,000
Accumulated Impairment Charge	$ (6,000)	$ (6,000)

XML

Related Party Transactions (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) shares	Jun. 30, 2014 USD ($) shares	Jun. 30, 2015 USD ($) item shares	Jun. 30, 2014 USD ($) shares
Chairman and Chief Executive Officer [Member]
Related Party Transaction, Due from (to) Related Party [Abstract]
Number of separate lease agreements | item			2
Lease effective date			Jun. 01, 2014
Aggregate monthly payments under non-cancelable operating lease agreements			$ 0.2
Percentage increase per annum in monthly lease payments under non-cancelable operating lease agreements			3.00%
Lease expense	$ 0.8	$ 0.6	$ 1.6	$ 1.3
O&G [Member]
Related Party Transaction, Due from (to) Related Party [Abstract]
Ownership percentage in joint venture	30.00%		30.00%
Estimated total contract value	$ 362.0		$ 362.0
Expenses for equipment and services	$ 3.2	$ 1.9	$ 5.2	$ 3.4
Number of Company's shares of common stock held by related party joint venture partner (in shares) | shares	500,000	500,000	500,000	500,000
Percentage of common stock held by related party	1.02%	1.03%	1.02%	1.03%

XML

Stock-Based Compensation (Key Assumptions Used in Estimating Grant Date Fair Value of Stock Option Awards) (Details) - 6 months ended Jun. 30, 2015 - shares	Total
Awarded During 2015 [Member]
Share-Based Compensation [Line Items]
Number of options	100,000
Risk-free interest rate	1.46%
Expected life of options (years)	5 years 6 months
Expected volatility of underlying stock	45.11%
Awarded During 2013 - 1 [Member]
Share-Based Compensation [Line Items]
Number of options	9,000
Risk-free interest rate	1.77%
Expected life of options (years)	5 years 8 months 5 days
Expected volatility of underlying stock	43.92%
Awarded During 2012 [Member]
Share-Based Compensation [Line Items]
Number of options	150,000
Risk-free interest rate	1.15%
Expected life of options (years)	4 years 22 days
Expected volatility of underlying stock	45.92%

XML

Separate Financial Information of Subsidiary Guarantors of Indebtedness, Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
CONDENSED CONSOLIDATING BALANCE SHEET
Ownership interest in guarantors	100.00%
ASSETS
Cash and Cash Equivalents	$ 106,917	$ 135,583	$ 139,858	$ 119,923
Restricted Cash	39,493	44,370
Accounts Receivable	1,553,514	1,479,504
Costs and Estimated Earnings in Excess of Billings	816,480	726,402
Deferred Income Taxes	17,952	17,962
Other Current Assets	103,243	68,735
Total current assets	2,637,599	2,472,556
Property and Equipment, net	537,833	527,602
Other Assets:
Goodwill	585,006	585,006
Intangible Assets, net	98,368	100,254
Other	84,830	87,897
Total assets	3,943,636	3,773,315
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Maturities of Long-term Debt	86,101	81,292
Accounts Payable	963,230	798,174
Billings in Excess of Costs and Estimated Earnings	263,400	319,296
Accrued Expenses and Other Current Liabilities	166,198	159,814
Total current liabilities	1,478,929	1,358,576
Long-term Debt, less current maturities	806,652	784,067
Deferred Income Taxes	150,193	150,371
Other Long-term Liabilities	$ 113,284	$ 114,796
Contingencies and Commitments
Stockholders' Equity	$ 1,394,578	$ 1,365,505
Total liabilities and stockholders' equity	3,943,636	3,773,315
Eliminations [Member]
ASSETS
Accounts Receivable	(99,091)	(103,622)
Costs and Estimated Earnings in Excess of Billings	(72,316)	(44,456)
Deferred Income Taxes		2,323
Other Current Assets	(35,656)	(37,608)
Total current assets	(207,063)	(183,363)
Intercompany Notes and Receivables	(183,867)	(122,401)
Other Assets:
Investment in Subsidiaries	(2,144,096)	(2,174,131)
Other	(5,549)	(5,453)
Total assets	(2,540,575)	(2,485,348)
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts Payable	(140,520)	(109,384)
Billings in Excess of Costs and Estimated Earnings	(10,296)	(8,203)
Accrued Expenses and Other Current Liabilities	(20,978)	(26,952)
Total current liabilities	(171,794)	(144,539)
Long-term Debt, less current maturities	(40,586)	(40,453)
Intercompany Notes and Advances Payable	$ (183,867)	$ (125,992)
Contingencies and Commitments
Stockholders' Equity	$ (2,144,328)	$ (2,174,363)
Total liabilities and stockholders' equity	(2,540,575)	(2,485,347)
Tutor Perini Corporation [Member]
ASSETS
Cash and Cash Equivalents	63,130	75,087	81,385	88,995
Restricted Cash	3,369	3,369
Accounts Receivable	432,447	299,427
Costs and Estimated Earnings in Excess of Billings	87,446	70,344
Deferred Income Taxes	2,323
Other Current Assets	51,069	39,196
Total current assets	639,784	487,423
Property and Equipment, net	108,970	92,413
Other Assets:
Investment in Subsidiaries	2,144,042	2,154,562
Other	80,149	83,503
Total assets	2,972,945	2,817,901
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Maturities of Long-term Debt	40,737	34,776
Accounts Payable	239,992	186,958
Billings in Excess of Costs and Estimated Earnings	97,399	139,020
Accrued Expenses and Other Current Liabilities	22,437	33,018
Total current liabilities	400,565	393,772
Long-term Debt, less current maturities	752,931	712,460
Deferred Income Taxes	142,279	142,457
Other Long-term Liabilities	111,290	112,899
Intercompany Notes and Advances Payable	$ 152,397	$ 90,373
Contingencies and Commitments
Stockholders' Equity	$ 1,413,483	$ 1,365,939
Total liabilities and stockholders' equity	2,972,945	2,817,900
Guarantor Subsidiaries [Member]
ASSETS
Cash and Cash Equivalents	30,780	36,764	50,422	18,031
Restricted Cash	4,935	5,274
Accounts Receivable	1,180,502	1,246,635
Costs and Estimated Earnings in Excess of Billings	801,198	700,362
Deferred Income Taxes	15,629	15,639
Other Current Assets	49,382	42,750
Total current assets	2,082,426	2,047,424
Property and Equipment, net	424,659	430,876
Intercompany Notes and Receivables	183,867	122,401
Other Assets:
Goodwill	585,006	585,006
Intangible Assets, net	98,368	100,254
Investment in Subsidiaries	4	19,519
Other	10,230	9,847
Total assets	3,384,560	3,315,327
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Maturities of Long-term Debt	45,364	46,516
Accounts Payable	862,841	716,851
Billings in Excess of Costs and Estimated Earnings	176,263	185,807
Accrued Expenses and Other Current Liabilities	100,349	95,177
Total current liabilities	1,184,817	1,044,351
Long-term Debt, less current maturities	94,307	112,060
Deferred Income Taxes	7,914	7,914
Other Long-term Liabilities	$ 1,994	$ 1,897
Contingencies and Commitments
Stockholders' Equity	$ 2,095,528	$ 2,149,105
Total liabilities and stockholders' equity	3,384,560	3,315,327
Non-Guarantor Subsidiaries [Member]
ASSETS
Cash and Cash Equivalents	13,007	23,732	$ 8,051	$ 12,897
Restricted Cash	31,189	35,727
Accounts Receivable	39,656	37,064
Costs and Estimated Earnings in Excess of Billings	152	152
Other Current Assets	38,448	24,397
Total current assets	122,452	121,072
Property and Equipment, net	4,204	4,313
Other Assets:
Investment in Subsidiaries	50	50
Total assets	126,706	125,435
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts Payable	917	3,749
Billings in Excess of Costs and Estimated Earnings	34	2,672
Accrued Expenses and Other Current Liabilities	64,390	58,571
Total current liabilities	65,341	64,992
Intercompany Notes and Advances Payable	$ 31,470	$ 35,619
Contingencies and Commitments
Stockholders' Equity	$ 29,895	$ 24,824
Total liabilities and stockholders' equity	$ 126,706	$ 125,435
Senior Unsecured Notes [Member]
CONDENSED CONSOLIDATING BALANCE SHEET
Interest rate	7.625%

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Stock-Based Compensation (Schedule of Outstanding Unvested Restricted Stock Unit Awards) (Details) - Restricted Stock Units [Member]	Jun. 30, 2015 shares
Share-Based Compensation [Line Items]
2015, Number of Awards	5,000
2016, Number of Awards	302,500
2017, Number of Awards	957,597
2018, Number of Awards	296,000
2019, Number of Awards	159,000
Total, Number of Awards	1,720,097

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Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Cash and Cash Equivalents [Line Items]
Cash and Cash Equivalents	$ 106,917	$ 135,583	$ 139,858	$ 119,923
Restricted Cash	39,493	44,370
Joint Venture [Member]
Cash and Cash Equivalents [Line Items]
Cash and Cash Equivalents	58,523	94,737
Corporate non-segment [Member]
Cash and Cash Equivalents [Line Items]
Cash and Cash Equivalents	$ 48,394	$ 40,846

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Separate Financial Information of Subsidiary Guarantors of Indebtedness, Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Cash Flows from Operating Activities:
Net income (loss)	$ 11,777	$ 28,545	$ 16,903	$ 44,484
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization			21,434	30,078
Stock-based compensation expense			13,324	9,920
Excess income tax benefit from stock-based compensation			(162)
Deferred income taxes			(177)	(64)
(Gain) loss on sale of investments				1,786
(Gain) loss on sale of property and equipment			(313)	427
Other long-term liabilities			42	5,559
Other non-cash items			(3,259)	1,562
Changes in other components of working capital			(79,550)	(155,187)
NET CASH USED IN OPERATING ACTIVITIES			(31,758)	(61,435)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases			(29,544)	(26,730)
Proceeds from sale of property and equipment			1,122	1,906
Proceeds from sale of available-for-sale securities				44,497
Change in restricted cash			4,877	(33)
NET CASH (USED BY) PROVIDED BY INVESTING ACTIVITIES			(23,545)	19,640
Cash Flows from Financing Activities:
Proceeds from debt			473,490	717,484
Repayment of debt			(446,239)	(649,282)
Business acquisition related payments				(1,260)
Excess income tax benefit from stock-based compensation			162
Issuance of common stock and effect of cashless exercise			(776)	(1,531)
Debt issuance costs				(3,681)
NET CASH PROVIDED BY FINANCING ACTIVITIES			26,637	61,730
Net (Decrease) Increase in Cash and Cash Equivalents			(28,666)	19,935
Cash and Cash Equivalents at Beginning of Year			135,583	119,923
Cash and Cash Equivalents at End of Period	106,917	139,858	106,917	139,858
Eliminations [Member]
Cash Flows from Operating Activities:
Net income (loss)	(6,586)	(31,748)	(18,526)	(47,029)
Adjustments to reconcile net income to net cash from operating activities:
Equity in earnings of subsidiaries	6,586	31,748	18,526	47,029
Cash Flows from Investing Activities:
Increase (decrease) in intercompany advances			101,660
NET CASH (USED BY) PROVIDED BY INVESTING ACTIVITIES			101,660
Cash Flows from Financing Activities:
Increase (decrease) in intercompany advances			(101,660)
NET CASH PROVIDED BY FINANCING ACTIVITIES			(101,660)
Tutor Perini Corporation [Member]
Cash Flows from Operating Activities:
Net income (loss)	11,777	28,545	16,903	44,484
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization			5,964	4,866
Equity in earnings of subsidiaries	(6,586)	(31,748)	(18,526)	(47,029)
Stock-based compensation expense			13,324	9,920
Excess income tax benefit from stock-based compensation			(162)
Deferred income taxes			(177)	4,672
(Gain) loss on sale of investments				1,786
(Gain) loss on sale of property and equipment			29
Other long-term liabilities			(56)	6,624
Other non-cash items			1,881	(3,620)
Changes in other components of working capital			(159,846)	(53,928)
NET CASH USED IN OPERATING ACTIVITIES			(140,666)	(32,225)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases				(16,715)
Proceeds from sale of property and equipment			(21,505)
Proceeds from sale of available-for-sale securities				44,497
Change in restricted cash				15,465
NET CASH (USED BY) PROVIDED BY INVESTING ACTIVITIES			(21,505)	43,247
Cash Flows from Financing Activities:
Proceeds from debt			473,362	685,079
Repayment of debt			(427,107)	(604,773)
Business acquisition related payments				(1,226)
Excess income tax benefit from stock-based compensation			162
Issuance of common stock and effect of cashless exercise			(776)	(1,531)
Increase (decrease) in intercompany advances			104,573	(96,181)
NET CASH PROVIDED BY FINANCING ACTIVITIES			150,214	(18,632)
Net (Decrease) Increase in Cash and Cash Equivalents			(11,957)	(7,610)
Cash and Cash Equivalents at Beginning of Year			75,087	88,995
Cash and Cash Equivalents at End of Period	63,130	81,385	63,130	81,385
Guarantor Subsidiaries [Member]
Cash Flows from Operating Activities:
Net income (loss)	5,209	26,896	14,691	38,515
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization			15,333	25,077
Deferred income taxes				(4,736)
(Gain) loss on sale of property and equipment			(342)	427
Other long-term liabilities			98	(1,065)
Other non-cash items			(5,140)	5,182
Changes in other components of working capital			96,590	(104,577)
NET CASH USED IN OPERATING ACTIVITIES			121,230	(41,177)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases			(29,516)	(10,015)
Proceeds from sale of property and equipment			22,627	1,906
Increase (decrease) in intercompany advances			(101,660)
Change in restricted cash			339	(10)
NET CASH (USED BY) PROVIDED BY INVESTING ACTIVITIES			(108,210)	(8,119)
Cash Flows from Financing Activities:
Proceeds from debt			128	32,405
Repayment of debt			(19,132)	(44,509)
Business acquisition related payments				(34)
Debt issuance costs				(3,681)
Increase (decrease) in intercompany advances				97,506
NET CASH PROVIDED BY FINANCING ACTIVITIES			(19,004)	81,687
Net (Decrease) Increase in Cash and Cash Equivalents			(5,984)	32,391
Cash and Cash Equivalents at Beginning of Year			36,764	18,031
Cash and Cash Equivalents at End of Period	30,780	50,422	30,780	50,422
Non-Guarantor Subsidiaries [Member]
Cash Flows from Operating Activities:
Net income (loss)	1,377	4,852	3,835	8,514
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization			137	135
Changes in other components of working capital			(16,294)	3,318
NET CASH USED IN OPERATING ACTIVITIES			(12,322)	11,967
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases			(28)
Change in restricted cash			4,538	(15,488)
NET CASH (USED BY) PROVIDED BY INVESTING ACTIVITIES			4,510	(15,488)
Cash Flows from Financing Activities:
Increase (decrease) in intercompany advances			(2,913)	(1,325)
NET CASH PROVIDED BY FINANCING ACTIVITIES			(2,913)	(1,325)
Net (Decrease) Increase in Cash and Cash Equivalents			(10,725)	(4,846)
Cash and Cash Equivalents at Beginning of Year			23,732	12,897
Cash and Cash Equivalents at End of Period	$ 13,007	$ 8,051	$ 13,007	$ 8,051

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Costs and estimated earnings in excess of billings (Tables)

6 Months Ended

Jun. 30, 2015

Costs and estimated earnings in excess of billings [Abstract]

Costs and estimated earnings in excess of billings

	June 30,		December 31,
	2015		2014
	(in thousands)
Unbilled costs and profits incurred to date (a)	$	248,561	$	253,078
Unapproved change orders		274,134		161,375
Claims		293,785		311,949
	$	816,480	$	726,402

(a) Represents the excess of contract costs and profits recognized to date on the percentage of completion accounting method over the amount of contract billings to date on certain contracts.

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Earnings per Common Share (Details) - Jun. 30, 2015 - shares	Total	Total
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings per share	120,097	65,049
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings per share	628,000	573,500

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Contingencies and Commitments (Details) $ in Thousands						1 Months Ended										3 Months Ended	6 Months Ended	12 Months Ended
	May. 05, 2015 USD ($)	Oct. 01, 2014 USD ($)	Mar. 20, 2014 USD ($)	Oct. 30, 2013 USD ($)	Aug. 20, 2013 USD ($)	Mar. 31, 2015 USD ($)	Jan. 31, 2015 USD ($)	Apr. 30, 2013 USD ($)	Dec. 31, 2012 USD ($)	Jun. 30, 2012 USD ($)	Mar. 31, 2011 USD ($)	Sep. 30, 2010 USD ($)	Apr. 30, 2010 USD ($)	Dec. 31, 2003 item	Jun. 30, 2003 USD ($)	Dec. 31, 2012 USD ($)	Jun. 30, 2015 USD ($) ft² claim	Dec. 31, 2009 USD ($) room	Mar. 09, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jul. 31, 2014 USD ($)	May. 31, 2012 USD ($)	Sep. 30, 2011 USD ($)	Jul. 31, 2010 USD ($)	May. 31, 2010 USD ($)	Mar. 31, 2010 USD ($)	Jun. 30, 2009 USD ($)	Feb. 28, 2006 USD ($)
Loss Contingencies [Line Items]
Contract receivables																	$ 1,553,514			$ 1,479,504
Tutor Perini Corporation [Member]
Loss Contingencies [Line Items]
Contract receivables																	$ 432,447			$ 299,427
Tutor-Saliba-Perini Joint Venture vs. Los Angeles MTA Matter [Member]
Loss Contingencies [Line Items]
Judgment in favor of TSP												$ 3,000
Tunnel handrail verdict against TSP												$ 500
Settlement receipt							$ 3,800
Total awards	$ 2,100
Long Island Expressway/Cross Island Parkway Matter [Member]
Loss Contingencies [Line Items]
Estimated value of project completed in Feb. 2006																												$ 130,000
Value of claim filed											$ 53,800
Amount receivable as per final agreement																							$ 500
Value of counterclaim filed																						$ 151,000
Fontainebleau Matter [Member]
Loss Contingencies [Line Items]
Number of rooms in hotel/casino complex | room																		3,800
Amount of court order in favor of plaintiff																									$ 45,000
Total outstanding liens on property, including subcontractors' liens																											$ 44,000
Amount set aside from approved sale for distribution to satisfy creditor claims																								$ 125,000
Estimated sustainable lien amount																								$ 350,000
Honeywell Street/Queens Boulevard Bridges Matter [Member]
Loss Contingencies [Line Items]
Value of claim filed															$ 8,800
Value of counterclaim filed																										$ 74,600
Westgate Planet Hollywood Matter [Member]
Loss Contingencies [Line Items]
Settlement receipt			$ 600
Total awards			19,700
Damages awarded which were anticipated to be paid including interest			$ 3,100
Value of cross complaint filed																		$ 51,000
Value of counterclaim filed																		45,000
Total outstanding liens on property, including subcontractors' liens																		23,200
Value of mechanic's lien release bond																		$ 22,300			$ 22,300
Value of supersedeas bond																					1,700
Total value of security																					$ 24,000
Brightwater Matter [Member]
Loss Contingencies [Line Items]
Ownership percentage in joint venture																	20.00%
Value of claim filed													$ 74,000
Value of counterclaim filed													$ 75,000
Appealed verdict award																			$ 17,000
Verdict awarded by jury									$ 155,800
Damages awarded									$ 26,300
Attorney's fees to be paid by VPFK								$ 14,700
Provision for contingency accrual																$ 5,000
156 Stations Matter [Member]
Loss Contingencies [Line Items]
Settlement receipt										$ 8,500
Total awards										$ 11,900
Number of stations for the New York City Transit Authority | item														156
U.S. Department of Commerce, National Oceanic and Atmospheric Administration Matter [Member]
Loss Contingencies [Line Items]
Total awards						$ 1,000
Value of claim filed		$ 700		$ 2,600	$ 26,800
Number of claims | claim																	3
Square footage of facility | ft²																	287,000
Total awards denied						$ 29,500

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Fair Value Measurements (Summary of Changes in Level 3 Liabilities) (Details) - Contingent Consideration [Member] - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014
Changes in Level 3 liabilities measured at fair value on recurring basis
Beginning balance	$ 25,560	$ 24,814	$ 48,395	$ 46,022
Fair value adjustments included in other income (expense), net	774	746	2,162	3,404
Contingent consideration settled			(229)	(1,031)
Ending balance	$ 26,334	$ 25,560	$ 50,328	$ 48,395

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Business Segments (Schedule of Assets by Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Reportable segment information
Total Assets	$ 3,943,636	$ 3,773,315
Building [Member]
Reportable segment information
Total Assets	671,060	680,933
Civil [Member]
Reportable segment information
Total Assets	1,934,040	1,814,170
Specialty Contractors [Member]
Reportable segment information
Total Assets	863,831	775,162
Reportable Segments [Member]
Reportable segment information
Total Assets	3,468,931	3,270,265
Corporate [Member]
Reportable segment information
Total Assets	$ 474,705	$ 503,050

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Stock-Based Compensation (Summary of Stock Options Activity) (Details) - Stock Options [Member] - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015
Number of Shares
Granted and Outstanding, Beginning of Period, Number of Shares		1,989,000
Granted, Number of Shares	0	259,000
Total Granted and Outstanding, End of Period, Number of Shares	2,248,000	2,248,000
Approved for grant, Number of Shares	677,000	677,000
Total Awarded and Outstanding, End of Period, Number of Shares	2,925,000	2,925,000
Weighted Average Grant Date Fair Value
Granted and Outstanding, Beginning of Period, Weighted Average Grant Date Fair Value		$ 12.75
Granted, Weighted Average Grant Date Fair Value		12.48
Total Granted and Outstanding, End of Period, Weighted Average Grant Date Fair Value	$ 11.93	11.93
Total Awardeded and Outstanding, End of Period, Weighted Average Grant Date Fair Value		12.75
Weighted Average Exercise Price
Granted and Outstanding, Beginning of Period, Weighted Average Exercise Price		19.63
Granted, Weighted Average Exercise Price		16.07
Total Granted and Outstanding, End of Period, Weighted Average Exercise Price	19.22	19.22
Approved for grant, Weighted Average Exercise Price	20.82	20.82
Total Awarded and Outstanding, End of Period, Weighted Average Exercise Price	$ 19.59	$ 19.59

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Significant Accounting Policies

6 Months Ended

Jun. 30, 2015

Significant Accounting Policies [Abstract]

Significant Accounting Policies

(2)     Significant Accounting Policies

The significant accounting policies followed by the Company and its subsidiaries in preparing its consolidated financial statements are set forth in Note 1 to the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Recently Issued Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update (“ASU”) ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition. This ASU addresses when an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In July 2015, FASB delayed the effective date by one year and is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period, using one of two retrospective application methods. Early application would be permitted only as of annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently evaluating the effect that the adoption of this ASU will have on its financial statements.

In June 2014, the FASB issued ASU No. 2014-12, Compensation — Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, clarifying the recognition timing of expense associated with certain performance based stock awards when the performance target that affects vesting could be achieved after the requisite service period. This ASU is an update to FASB ASC Topic 718 and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 with earlier adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.

In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810). The goal of this ASU is to reduce the potentially distortive impact on reporting entities’ consolidated financial statements resulting from the consolidation of certain legal entities, including joint ventures and variable interest entities. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements. 

In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30). This ASU requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on the Company’s financial statements. 

Use of and Changes in Estimates

The Company’s construction business involves making significant estimates and assumptions in the normal course of business relating to its contracts and its joint venture contracts. Management focuses on evaluating the performance of contracts individually.These estimatescan vary in the normal course of business as projects progress, when estimated productivity assumptions change based on experience to date and uncertainties are resolved.Change orders and claims, as well as changes in related estimates of costs to complete, are considered revisions in estimates. The Company uses the cumulative catch-upmethod applicable to construction contract accounting to account for revisions in estimates. The impact on operating margin in a reporting period and future periods from a change in estimate will depend on the stage of contract completion.

During the three months endedJune 30, 2015, the Company’s results of operations were negatively impacted because of an unfavorable change in the estimated cost to complete for a certain Building segment project. This change in estimate resulted in a $14.7 million decrease in income from construction operations, an $8.7 million decrease in net income, and a $0.17 decrease in diluted earnings per share (“EPS”) during the three months ended June 30, 2015.

During the three months ended June 30, 2014, the Company’s results of operations were positively impacted because of changes in the estimated cost recovery on two Civil segment projects based on certain legal rulings issued during the period. One project had a favorable ruling, resulting in a $24.2 million increase, and the second project had an unfavorable ruling, resulting in a $9.4 million decrease. Together, these changes in estimates resulted in a $14.8 million increase in income from construction operations, an $8.8 million increase in net income, and an $0.18 increase in diluted EPS during the three months ended June 30, 2014.

These changes were the only changes in estimates considered material to the Company’s results of operations during the periods presented herein.

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income tax provision (benefit)	$ 8,215	$ 19,067	$ 11,294	$ 30,421
Effective tax rate (as a percent)	41.10%	40.00%	40.10%	40.60%
Unrecognized tax benefits, including related interest and penalties			$ 7,900
Unrecognized tax benefits that would impact the effective tax rate	$ 6,800		6,800
Unrecognized tax benefits interest that would impact the effective tax rate	1,100		1,100
Tutor Perini Corporation [Member]
Income tax provision (benefit)	$ 3,008	$ (2,208)	$ (1,086)	$ (1,740)

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Business Segments (Tables)

6 Months Ended

Jun. 30, 2015

Business Segments [Abstract]

Reportable Segments

	Reportable Segments
					Specialty							Consolidated
(in thousands)	Civil			Building	Contractors		Totals		Corporate			Total
Three Months Ended June 30, 2015
Total revenues	$	573,360	$	472,247	$	326,798	$	1,372,405	$	—		$	1,372,405
Elimination of intersegment revenues		(39,180)		(20,843)		56		(59,967)		—			(59,967)
Revenues from external customers	$	534,180	$	451,404	$	326,854	$	1,312,438	$	—		$	1,312,438
Income from construction operations	$	46,329	$	(12,592)	$	13,743	$	47,480	$	(16,599)	(a)	$	30,881
Three Months Ended June 30, 2014
Total revenues	$	398,123	$	390,353	$	321,959	$	1,110,435	$	—		$	1,110,435
Elimination of intersegment revenues		(7,584)		(18,341)		—		(25,925)		—			(25,925)
Revenues from external customers	$	390,539	$	372,012	$	321,959	$	1,084,510	$	—		$	1,084,510
Income from construction operations	$	58,002	$	7,674	$	12,633	$	78,309	$	(12,866)	(a)	$	65,443
	Reportable Segments
					Specialty							Consolidated
(in thousands)	Civil			Building	Contractors		Totals		Corporate			Total
Six Months Ended June 30, 2015
Total revenues	$	966,236	$	888,309	$	619,816	$	2,474,361	$	—		$	2,474,361
Elimination of intersegment revenues		(57,382)		(38,076)		—		(95,458)		—			(95,458)
Revenues from external customers	$	908,854	$	850,233	$	619,816	$	2,378,903	$	—		$	2,378,903
Income from construction operations	$	76,923	$	(14,870)	$	24,267	$	86,320	$	(35,355)	(a)	$	50,965
Six Months Ended June 30, 2014
Total revenues	$	774,515	$	701,668	$	614,104	$	2,090,287	$	—		$	2,090,287
Elimination of intersegment revenues		(18,820)		(31,724)		—		(50,544)		—			(50,544)
Revenues from external customers	$	755,695	$	669,944	$	614,104	$	2,039,743	$	—		$	2,039,743
Income from construction operations	$	102,347	$	9,497	$	20,450	$	132,294	$	(25,354)	(a)	$	106,940

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

Schedule of Assets by Segment

	June 30, 2015		December 31, 2014
(in thousands)
Building	$	671,060	$	680,933
Civil		1,934,040		1,814,170
Specialty Contractors		863,831		775,162
Totals	$	3,468,931	$	3,270,265
Corporate (a)		474,705		503,050
Consolidated Total	$	3,943,636	$	3,773,315

Consists principally of Cash and Cash Equivalents and corporate transportation equipment.

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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

Stock-Based Compensation [Abstract]

Summary of Restricted Stock Unit Awards Activity

				Aggregate
		Weighted Average		Intrinsic
	Number	Grant Date		Value
	of Shares	Fair Value		(in thousands)
Granted and Unvested - January 1, 2015	1,056,597	$	26.54	$	25,432
Activity during the six months ended June 30, 2015:
Vested	(365,940)	$	27.18	$	7,896
Granted	321,500	$	23.07	$	6,938
Forfeited	(1,560)	$	28.59	$	—
Total Granted and Unvested - June 30, 2015	1,010,597	$	26.70	$	21,809
Approved for grant	709,500	$	(a)	$	15,311
Total Awarded and Unvested - June 30, 2015	1,720,097	$	n.a.	$	37,120

Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.

Vesting Schedule of Outstanding Unvested Restricted Stock Unit Awards

	Number
Vesting Date	of Awards
2015	5,000
2016	302,500
2017	957,597
2018	296,000
2019	159,000
	1,720,097

Summary of Stock Options Activity

		Weighted Average
	Number	Grant Date		Exercise
	of Shares	Fair Value		Price
Granted and Outstanding - January 1, 2015	1,989,000	$	12.75	$	19.63
Activity during the six months ended June 30, 2015:
Granted	259,000	$	12.48	$	16.07
Exercised	—	$	—	$	—
Forfeited	—	$	—	$	—
Total Granted and Outstanding - June 30, 2015	2,248,000	$	11.93	$	19.22
Approved for grant	677,000	$	(a)	$	20.82
Total Awarded and Outstanding - June 30, 2015	2,925,000	$	n/a	$	19.59

Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.

Key Assumptions Used in Estimating Grant Date Fair Value of Stock Option Awards

Awarded during		2015			2013			2012
Number of options		100,000			9,000			150,000
Risk-free interest rate		1.46	%		1.77	%		1.15	%
Expected life of options (years)		5.50			5.68			4.06
Expected volatility of underlying stock		45.11	%		43.92	%		45.92	%
Expected quarterly dividends (per share)	$	—		$	—		$	—

XML

Separate Financial Information of Subsidiary Guarantors of Indebtedness, Condensed Consolidating Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	$ 1,312,438	$ 1,084,510	$ 2,378,903	$ 2,039,743
Cost of Operations	1,213,818	954,979	2,189,524	1,804,865
Gross profit	98,620	129,531	189,379	234,878
General and Administrative Expenses	67,739	64,088	138,414	127,938
INCOME FROM CONSTRUCTION OPERATIONS	30,881	65,443	50,965	106,940
Other (Expense) Income, net	100	(6,974)	(655)	(10,347)
Interest Expense	(10,989)	(10,857)	(22,113)	(21,688)
Income before income taxes	19,992	47,612	28,197	74,905
Benefit (Provision) for Income Taxes	(8,215)	(19,067)	(11,294)	(30,421)
NET INCOME	11,777	28,545	16,903	44,484
Other Comprehensive Income:
Foreign currency translation	(1,146)	347	(1,734)	61
Change in fair value of investments	(74)	(7)	(84)	174
Change in fair value of interest rate swap	60	76	105	157
NET OTHER COMPREHENSIVE INCOME (LOSS)	(1,160)	416	(1,713)	392
TOTAL COMPREHENSIVE INCOME	10,617	28,961	15,190	44,876
Eliminations [Member]
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	(65,338)	(41,580)	(124,559)	(76,830)
Cost of Operations	(65,338)	(41,580)	(124,559)	(76,830)
Equity in Earnings of Subsidiaries	(6,586)	(31,748)	(18,526)	(47,029)
Income before income taxes	(6,586)	(31,748)	(18,526)	(47,029)
NET INCOME	(6,586)	(31,748)	(18,526)	(47,029)
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries	1,220	(340)	1,818	(235)
NET OTHER COMPREHENSIVE INCOME (LOSS)	1,220	(340)	1,818	(235)
TOTAL COMPREHENSIVE INCOME	(5,366)	(32,088)	(16,708)
Tutor Perini Corporation [Member]
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	309,217	207,944	545,509	434,791
Cost of Operations	265,129	177,877	474,962	371,691
Gross profit	44,088	30,067	70,547	63,100
General and Administrative Expenses	25,289	18,985	50,324	36,780
INCOME FROM CONSTRUCTION OPERATIONS	18,799	11,082	20,223	26,320
Equity in Earnings of Subsidiaries	6,586	31,748	18,526	47,029
Other (Expense) Income, net	(466)	(6,684)	(2,535)	(10,779)
Interest Expense	(10,134)	(9,809)	(20,397)	(19,826)
Income before income taxes	14,785	26,337	15,817	42,744
Benefit (Provision) for Income Taxes	(3,008)	2,208	1,086	1,740
NET INCOME	11,777	28,545	16,903	44,484
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries	(1,220)	340	(1,818)	235
Change in fair value of interest rate swap	60	76	105	157
NET OTHER COMPREHENSIVE INCOME (LOSS)	(1,160)	416	(1,713)	392
TOTAL COMPREHENSIVE INCOME	10,617	28,961	15,190
Guarantor Subsidiaries [Member]
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	1,065,766	918,146	1,950,869	1,681,782
Cost of Operations	1,014,027	827,097	1,839,121	1,525,005
Gross profit	51,739	91,049	111,748	156,777
General and Administrative Expenses	41,985	44,625	87,151	90,245
INCOME FROM CONSTRUCTION OPERATIONS	9,754	46,424	24,597	66,532
Other (Expense) Income, net	431	(418)	1,627	184
Interest Expense	(855)	(1,048)	(1,716)	(1,862)
Income before income taxes	9,330	44,958	24,508	64,854
Benefit (Provision) for Income Taxes	(4,121)	(18,062)	(9,817)	(26,339)
NET INCOME	5,209	26,896	14,691	38,515
Other Comprehensive Income:
Foreign currency translation	(1,146)	347	(1,734)	61
Change in fair value of investments	(74)	(7)	(84)	174
NET OTHER COMPREHENSIVE INCOME (LOSS)	(1,220)	340	(1,818)	235
TOTAL COMPREHENSIVE INCOME	3,989	27,236	12,873
Non-Guarantor Subsidiaries [Member]
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	2,793		7,084
Cost of Operations		(8,415)		(15,001)
Gross profit	2,793	8,415	7,084	15,001
General and Administrative Expenses	465	478	939	913
INCOME FROM CONSTRUCTION OPERATIONS	2,328	7,937	6,145	14,088
Other (Expense) Income, net	135	128	253	248
Income before income taxes	2,463	8,065	6,398	14,336
Benefit (Provision) for Income Taxes	(1,086)	(3,213)	(2,563)	(5,822)
NET INCOME	1,377	4,852	3,835	$ 8,514
Other Comprehensive Income:
TOTAL COMPREHENSIVE INCOME	$ 1,377	$ 4,852	$ 3,835

XML

Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restricted Stock Units [Member]
Share-Based Compensation [Line Items]
Number of shares of common stock exchanged for each award			1
Aggregate number of shares approved	6,276,430		6,276,430
Weighted average grant date fair value			$ 23.07
Forfeited			1,560
Compensation expense	$ 3.0	$ 3.2	$ 8.6	$ 7.0
Unrecognized compensation cost related to the unvested awards	$ 15.8		$ 15.8
Weighted average period over which unrecognized compensation cost is expected to be recognized			1 year 7 months 6 days
Number of unvested stock awards that will vest subject to the satisfaction of service-based requirements and the achievement of performance metrics			35,000
Number of unvested stock awards that will vest subject to the satisfaction of service-based requirements			1,685,097
Granted, Weighted average grant date fair value			$ 23.07	$ 27.33
Restricted Stock Units [Member] | Awarded in 2015, 2013, and 2012 [Member]
Share-Based Compensation [Line Items]
Number of restricted stock units for which performance targets are established			321,500
Restricted Stock Units [Member] | Awarded in 2014, 2013 and 2012 [Member]
Share-Based Compensation [Line Items]
Number of restricted stock units for which performance targets are established				866,500
Stock Options [Member]
Share-Based Compensation [Line Items]
Aggregate number of shares approved	3,385,465		3,385,465
Weighted average grant date fair value			$ 12.48
Compensation expense	$ 1.1	$ 1.3	$ 4.7	$ 2.9
Unrecognized compensation cost related to the unvested awards	$ 5.1		$ 5.1
Weighted average period over which unrecognized compensation cost is expected to be recognized			1 year 2 months 12 days
Term of stock options			10 years
Granted, Weighted average grant date fair value			$ 12.48	$ 17.69
Number of vested and exercisable stock options	1,485,000		1,485,000
Vested and exercisable stock options, weighted average exercise price	$ 19.57		$ 19.57
Number of unvested stock option awards that will vest subject to the satisfaction of service-based requirements	15,000		15,000
Number of unvested stock option awards that will vest subject to the satisfaction of service-based requirements and the achievement of performance metrics	1,425,000		1,425,000
Outstanding shares	2,248,000		2,248,000
Intrinsic value of outstanding stock options	$ 8.4		$ 8.4
Weighted average remaining contractual term of outstanding stock options			5 years 8 months 12 days
Granted	0		259,000
Stock Options [Member] | Awarded in 2014, 2013 and 2012 [Member]
Share-Based Compensation [Line Items]
Number of stock option awards subject to performance targets				714,000
Stock Options [Member] | Awarded in 2015, 2014, 2013, And 2012 [Member]
Share-Based Compensation [Line Items]
Number of stock option awards subject to performance targets			259,000
Plan [Member]
Share-Based Compensation [Line Items]
Number of shares authorized for grant	8,500,000		8,500,000
Number of shares available for future grant	46,768		46,768

XML

Employee Pension Plans (Tables)

6 Months Ended

Jun. 30, 2015

Employee Pension Plans [Abstract]

Components of Net Periodic Benefit Cost

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(in thousands)				(in thousands)
Interest cost	$	1,011	$	1,030	$	2,022	$	2,060
Expected return on plan assets		(1,256)		(1,192)		(2,512)		(2,384)
Amortization of net loss		1,460		1,077		2,920		2,154
Net periodic benefit cost	$	1,215	$	915	$	2,430	$	1,830

XML

Separate Financial Information of Subsidiary Guarantors of Indebtedness (Tables)

6 Months Ended

Jun. 30, 2015

Separate Financial Information of Subsidiary Guarantors of Indebtedness [Abstract]

Condensed Consolidating Balance Sheet

CONDENSED CONSOLIDATING BALANCE SHEET - JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
ASSETS
Cash and Cash Equivalents	$	63,130	$	30,780	$	13,007	$	—	$	106,917
Restricted Cash		3,369		4,935		31,189		—		39,493
Accounts Receivable		432,447		1,180,502		39,656		(99,091)		1,553,514
Costs and Estimated Earnings in Excess of Billings		87,446		801,198		152		(72,316)		816,480
Deferred Income Taxes		2,323		15,629		—		—		17,952
Other Current Assets		51,069		49,382		38,448		(35,656)		103,243
Total Current Assets	$	639,784	$	2,082,426	$	122,452	$	(207,063)	$	2,637,599
Long-term Investments	$	—	$	—	$	—	$	—	$	—
Property and Equipment, net		108,970		424,659		4,204		—		537,833
Intercompany Notes and Receivables		—		183,867		—		(183,867)		—
Other Assets:
Goodwill		—		585,006		—		—		585,006
Intangible Assets, net		—		98,368		—		—		98,368
Investment in Subsidiaries		2,144,042		4		50		(2,144,096)		—
Other		80,149		10,230		—		(5,549)		84,830
	$	2,972,945	$	3,384,560	$	126,706	$	(2,540,575)	$	3,943,636
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Maturities of Long-term Debt	$	40,737	$	45,364	$	—	$	—	$	86,101
Accounts Payable		239,992		862,841		917		(140,520)		963,230
Billings in Excess of Costs and Estimated Earnings		97,399		176,263		34		(10,296)		263,400
Accrued Expenses and Other Current Liabilities		22,437		100,349		64,390		(20,978)		166,198
Total Current Liabilities	$	400,565	$	1,184,817	$	65,341	$	(171,794)	$	1,478,929
Long-term Debt, less current maturities		752,931		94,307		—		(40,586)		806,652
Deferred Income Taxes		142,279		7,914		—		—		150,193
Other Long-term Liabilities		111,290		1,994		—		—		113,284
Intercompany Notes and Advances Payable		152,397		—		31,470		(183,867)		—
Contingencies and Commitments		—		—		—		—		—
Stockholders’ Equity		1,413,483		2,095,528		29,895		(2,144,328)		1,394,578
	$	2,972,945	$	3,384,560	$	126,706	$	(2,540,575)	$	3,943,636

CONDENSED CONSOLIDATING BALANCE SHEET - DECEMBER 31, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
ASSETS
Cash and Cash Equivalents	$	75,087	$	36,764	$	23,732	$	—	$	135,583
Restricted Cash		3,369		5,274		35,727		—		44,370
Accounts Receivable		299,427		1,246,635		37,064		(103,622)		1,479,504
Costs and Estimated Earnings in Excess of Billings		70,344		700,362		152		(44,456)		726,402
Deferred Income Taxes		—		15,639		—		2,323		17,962
Other Current Assets		39,196		42,750		24,397		(37,608)		68,735
Total Current Assets	$	487,423	$	2,047,424	$	121,072	$	(183,363)	$	2,472,556
Long-term Investments		—		—		—		—		—
Property and Equipment, net		92,413		430,876		4,313		—		527,602
Intercompany Notes and Receivables		—		122,401		—		(122,401)		—
Other Assets:
Goodwill		—		585,006		—		—		585,006
Intangible Assets, net		—		100,254		—		—		100,254
Investment in Subsidiaries		2,154,562		19,519		50		(2,174,131)		—
Other		83,503		9,847		—		(5,453)		87,897
	$	2,817,901	$	3,315,327	$	125,435	$	(2,485,348)	$	3,773,315
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Maturities of Long-term Debt		34,776		46,516		—		—		81,292
Accounts Payable		186,958		716,851		3,749		(109,384)		798,174
Billings in Excess of Costs and Estimated Earnings		139,020		185,807		2,672		(8,203)		319,296
Accrued Expenses and Other Current Liabilities		33,018		95,177		58,571		(26,952)		159,814
Total Current Liabilities	$	393,772	$	1,044,351	$	64,992	$	(144,539)	$	1,358,576
Long-term Debt, less current maturities		712,460		112,060		—		(40,453)		784,067
Deferred Income Taxes		142,457		7,914		—		—		150,371
Other Long-term Liabilities		112,899		1,897		—		—		114,796
Intercompany Notes and Advances Payable		90,373		—		35,619		(125,992)		—
Contingencies and Commitments		—		—		—		—		—
Stockholders’ Equity		1,365,939		2,149,105		24,824		(2,174,363)		1,365,505
	$	2,817,900	$	3,315,327	$	125,435	$	(2,485,347)	$	3,773,315

Condensed Consolidating Statement of Operations

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

THREE MONTHS ENDED JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	309,217	$	1,065,766	$	2,793	$	(65,338)	$	1,312,438
Cost of Operations		265,129		1,014,027		—		(65,338)		1,213,818
Gross Profit	$	44,088	$	51,739	$	2,793	$	—	$	98,620
General and Administrative Expenses		25,289		41,985		465		—		67,739
INCOME FROM CONSTRUCTION OPERATIONS	$	18,799	$	9,754	$	2,328	$	—	$	30,881
Equity in Earnings of Subsidiaries		6,586		—		—		(6,586)		—
Other (Expense) Income, net		(466)		431		135		—		100
Interest Expense		(10,134)		(855)		—		—		(10,989)
Income (Loss) before Income Taxes		14,785		9,330		2,463		(6,586)		19,992
Benefit (Provision) for Income Taxes		(3,008)		(4,121)		(1,086)		—		(8,215)
NET INCOME (LOSS)	$	11,777	$	5,209	$	1,377	$	(6,586)	$	11,777
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		(1,220)		—		—		1,220		—
Foreign currency translation		—		(1,146)		—		—		(1,146)
Change in fair value of investments		—		(74)		—		—		(74)
Change in fair value of interest rate swap		60		—		—		—		60
Total Other Comprehensive (Loss) Income	$	(1,160)	$	(1,220)	$	—	$	1,220	$	(1,160)
Total Comprehensive Income (Loss)	$	10,617	$	3,989	$	1,377	$	(5,366)	$	10,617

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

THREE MONTHS ENDED JUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	207,944	$	918,146	$	—	$	(41,580)	$	1,084,510
Cost of Operations		177,877		827,097		(8,415)		(41,580)		954,979
Gross Profit	$	30,067	$	91,049	$	8,415	$	—	$	129,531
General and Administrative Expenses		18,985		44,625		478		—		64,088
INCOME FROM CONSTRUCTION OPERATIONS	$	11,082	$	46,424	$	7,937	$	—	$	65,443
Equity in Earnings of Subsidiaries		31,748		—		—		(31,748)		—
Other (Expense) Income, net		(6,684)		(418)		128		—		(6,974)
Interest Expense		(9,809)		(1,048)		—		—		(10,857)
Income (Loss) before Income Taxes	$	26,337	$	44,958	$	8,065	$	(31,748)	$	47,612
Benefit (Provision) for Income Taxes		2,208		(18,062)		(3,213)		—		(19,067)
NET INCOME (LOSS)	$	28,545	$	26,896	$	4,852	$	(31,748)	$	28,545
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		340		—		—		(340)		—
Foreign currency translation		—		347		—		—		347
Change in fair value of investments		—		(7)		—		—		(7)
Change in fair value of interest rate swap		76		—		—		—		76
Total Other Comprehensive (Loss) Income	$	416	$	340	$	—	$	(340)	$	416
Total Comprehensive Income (Loss)	$	28,961	$	27,236	$	4,852	$	(32,088)	$	28,961

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

SIX MONTHS ENDEDJUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	545,509	$	1,950,869	$	7,084	$	(124,559)	$	2,378,903
Cost of Operations		474,962		1,839,121		—		(124,559)		2,189,524
Gross Profit	$	70,547	$	111,748	$	7,084	$	—	$	189,379
General and Administrative Expenses		50,324		87,151		939		—		138,414
INCOME FROM CONSTRUCTION OPERATIONS	$	20,223	$	24,597	$	6,145	$	—	$	50,965
Equity in Earnings of Subsidiaries		18,526		—		—		(18,526)		—
Other (Expense) Income, net		(2,535)		1,627		253		—		(655)
Interest Expense		(20,397)		(1,716)		—		—		(22,113)
Income (loss) before Income Taxes		15,817		24,508		6,398		(18,526)		28,197
Benefit (Provision) for Income Taxes		1,086		(9,817)		(2,563)		—		(11,294)
NET INCOME (LOSS)	$	16,903	$	14,691	$	3,835	$	(18,526)	$	16,903
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		(1,818)		—		—		1,818		—
Foreign currency translation		—		(1,734)		—		—		(1,734)
Change in fair value of investments		—		(84)		—		—		(84)
Change in fair value of interest rate swap		105		—		—		—		105
Total Other Comprehensive (Loss) Income		(1,713)		(1,818)		—		1,818		(1,713)
Total Comprehensive Income (Loss)	$	15,190	$	12,873	$	3,835	$	(16,708)	$	15,190

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

SIX MONTHS ENDEDJUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	434,791	$	1,681,782	$	—	$	(76,830)	$	2,039,743
Cost of Operations		371,691		1,525,005		(15,001)		(76,830)		1,804,865
Gross Profit		63,100		156,777		15,001		—		234,878
General and Administrative Expenses		36,780		90,245		913		—		127,938
INCOME FROM CONSTRUCTION OPERATIONS		26,320		66,532		14,088		—		106,940
Equity in Earnings of Subsidiaries		47,029		—		—		(47,029)		—
Other (Expense) Income, net		(10,779)		184		248		—		(10,347)
Interest Expense		(19,826)		(1,862)		—		—		(21,688)
Income (Loss) before Income Taxes		42,744		64,854		14,336		(47,029)		74,905
Benefit (Provision) for Income Taxes		1,740		(26,339)		(5,822)		—		(30,421)
NET INCOME  (LOSS)	$	44,484	$	38,515	$	8,514	$	(47,029)	$	44,484
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		235		—		—		(235)		—
Change in pension benefit plans assets/liabilities		—		—		—		—		—
Foreign currency translation		—		61		—		—		61
Change in fair value of investments		—		174		—		—		174
Change in fair value of interest rate swap		157		—		—		—		157
Total Other Comprehensive (Loss) Income		392		235		—		(235)		392
Total Comprehensive Income (Loss)	$	44,876	$	38,750	$	8,514	$	(47,264)	$	44,876

Condensed Consolidating Statement of Cash Flows

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

SIX MONTHS ENDEDJUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Cash Flows from Operating Activities:
Net income (loss)	$	16,903	$	14,691	$	3,835	$	(18,526)	$	16,903
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		5,964		15,333		137		—		21,434
Equity in earnings of subsidiaries		(18,526)		—		—		18,526		—
Stock-based compensation expense		13,324		—		—		—		13,324
Excess income tax benefit from stock-based compensation		(162)		—		—		—		(162)
Adjustment of investments to fair value		—		—		—		—		—
Adjustment interest rate swap to fair value		—		—		—		—		—
Deferred income taxes		(177)		—		—		—		(177)
(Gain) loss on sale of investments		—		—		—		—		—
(Gain) loss on sale of property and equipment		29		(342)		—		—		(313)
Other long-term liabilities		(56)		98		—		—		42
Other non-cash items		1,881		(5,140)		—		—		(3,259)
Changes in other components of working capital		(159,846)		96,590		(16,294)		—		(79,550)
NET CASH (USED) PROVIDED BY OPERATING ACTIVITIES	$	(140,666)	$	121,230	$	(12,322)	$	—	$	(31,758)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases		—		(29,516)		(28)		—		(29,544)
Proceeds from sale of property and equipment		(21,505)		22,627		—		—		1,122
Proceeds from sale of available-for-sale securities		—		—		—		—		—
(Increase) decrease in intercompany advances		—		(101,660)		—		101,660		—
Change in restricted cash		—		339		4,538		—		4,877
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	$	(21,505)	$	(108,210)	$	4,510	$	101,660	$	(23,545)
Cash Flows from Financing Activities:
Proceeds from debt		473,362		128		—		—		473,490
Repayment of debt		(427,107)		(19,132)		—		—		(446,239)
Business acquisition-related payments		—		—		—		—		—
Excess income tax benefit from stock-based compensation		162		—		—		—		162
Issuance of common stock and effect of cashless exercise		(776)		—		—		—		(776)
Debt Issuance Costs		—		—		—		—		—
Increase (decrease) in intercompany advances		104,573		—		(2,913)		(101,660)		—
NET CASH (USED) PROVIDED BY FINANCING ACTIVITIES	$	150,214	$	(19,004)	$	(2,913)	$	(101,660)	$	26,637
Net (Decrease) Increase in Cash and Cash Equivalents		(11,957)		(5,984)		(10,725)		—		(28,666)
Cash and Cash Equivalents at Beginning of Year		75,087		36,764		23,732		—		135,583
Cash and Cash Equivalents at End of Period	$	63,130	$	30,780	$	13,007	$	—	$	106,917

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

SIX MONTHS ENDEDJUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Cash Flows from Operating Activities:
Net income (loss)	$	44,484	$	38,515	$	8,514	$	(47,029)	$	44,484
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		4,866		25,077		135		—		30,078
Equity in earnings of subsidiaries		(47,029)		—		—		47,029		—
Stock-based compensation expense		9,920		—		—		—		9,920
Deferred income taxes		4,672		(4,736)		—		—		(64)
(Gain) loss on sale of investments		1,786		—		—		—		1,786
(Gain) loss on sale of property and equipment		—		427		—		—		427
Other long-term liabilities		6,624		(1,065)		—		—		5,559
Other non-cash items		(3,620)		5,182		—		—		1,562
Changes in other components of working capital		(53,928)		(104,577)		3,318		—		(155,187)
NET CASH PROVIDED (USED) BY OPERATING ACTIVITIES	$	(32,225)	$	(41,177)	$	11,967	$	—	$	(61,435)
Cash Flows from Investing Activities:
Acquisition of property and equipment		(16,715)		(10,015)		—		—		(26,730)
Proceeds from sale of property and equipment		—		1,906		—		—		1,906
Proceeds from sale of available-for-sale securities		44,497		—		—		—		44,497
Change in restricted cash		15,465		(10)		(15,488)		—		(33)
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	$	43,247	$	(8,119)	$	(15,488)	$	—	$	19,640
Cash Flows from Financing Activities:
Proceeds from debt		685,079		32,405		—		—		717,484
Repayment of debt		(604,773)		(44,509)		—		—		(649,282)
Business acquisition related payments		(1,226)		(34)		—		—		(1,260)
Issuance of common stock and effect of cashless exercise		(1,531)		—		—		—		(1,531)
Debt issuance costs		—		(3,681)		—		—		(3,681)
Increase (decrease) in intercompany advances		(96,181)		97,506		(1,325)		—		—
NET CASH (USED) PROVIDED BY FINANCING ACTIVITIES	$	(18,632)	$	81,687	$	(1,325)	$	—	$	61,730
Net Increase (Decrease) in Cash and Cash Equivalents		(7,610)		32,391		(4,846)		—		19,935
Cash and Cash Equivalents at Beginning of Year		88,995		18,031		12,897		—		119,923
Cash and Cash Equivalents at End of Period	$	81,385	$	50,422	$	8,051	$	—	$	139,858

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Basis of Presentation

6 Months Ended

Jun. 30, 2015

Basis of Presentation [Abstract]

Basis of Presentation

(1)     Basis of Presentation

The unaudited consolidated condensed financial statements presented herein include the accounts of Tutor Perini Corporation and its wholly owned subsidiaries (“Tutor Perini” or the “Company”). The Company’s interests in construction joint ventures are accounted for using the proportionate consolidation method whereby the Company’s proportionate share of each joint venture’s assets, liabilities, revenues and cost of operations are included in the appropriate classifications in the consolidated financial statements. All intercompany transactions and balances have been eliminated in consolidation.

The unaudited consolidated condensed financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and note disclosures required by accounting principles generally accepted in the United States as codified in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification. These statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

In the opinion of management, the accompanying unaudited consolidated condensed financial statements include all adjustments, consisting only of normal recurring adjustments necessary to present fairly the Company’s financial position as of June 30, 2015 and December 31, 2014, results of operations and comprehensive income, for the three and six months endedJune 30,2015 and 2014, and cash flows for the six months endedJune 30, 2015 and 2014. The results of operations for the three and six months endedJune 30,2015 are not indicative of the results that may be expected for the year ending December 31, 2015 because, among other reasons, such results can vary depending on the timing of progress achieved and changes in estimated profitability of projects being reported.

The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional evidence relative to certain estimates or to identify matters that require additional disclosures.

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Significant Accounting Policies (Details) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) $ / shares	Jun. 30, 2014 USD ($) segment $ / shares	Jun. 30, 2015 USD ($) $ / shares	Jun. 30, 2014 USD ($) $ / shares
Change in Accounting Estimate [Line Items]
Number of Civil segment projects | segment		2
Income from construction operations	$ 30,881	$ 65,443	$ 50,965	$ 106,940
Net income	$ 11,777	$ 28,545	$ 16,903	$ 44,484
Diluted earnings per common share (in dollars per share) | $ / shares	$ 0.24	$ 0.58	$ 0.34	$ 0.91
Civil Segment Project One [Member]
Change in Accounting Estimate [Line Items]
Impact on results of operations		$ 24,200
Civil Segment Project Two [Member]
Change in Accounting Estimate [Line Items]
Impact on results of operations		(9,400)
Changes In Estimates [Member]
Change in Accounting Estimate [Line Items]
Income from construction operations	$ 14,700	14,800		$ 14,800
Net income	$ (8,700)	$ 8,800		$ 8,800
Diluted earnings per common share (in dollars per share) | $ / shares	$ (0.17)	$ 0.18		$ 0.18
Tutor Perini Corporation [Member]
Change in Accounting Estimate [Line Items]
Income from construction operations	$ 18,799	$ 11,082	$ 20,223	$ 26,320
Net income	$ 11,777	$ 28,545	$ 16,903	$ 44,484

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Goodwill and Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived intangible assets
Carrying Value	$ 48,000
Total intangible assets
Cost	311,456	$ 311,456
Accumulated Amortization	(100,021)	(98,135)
Accumulated Impairment Charge	(113,067)	(113,067)
Carrying Value	98,368	100,254
Trade Names [Member]
Finite-Lived intangible assets
Cost	74,350	74,350
Accumulated Amortization	(10,073)	(8,829)
Accumulated Impairment Charge	(23,232)	(23,232)
Carrying Value	$ 41,045	$ 42,289
Weighted Average Amortization Period	20 years	20 years
Customer Relationships [Member]
Finite-Lived intangible assets
Cost	$ 39,800	$ 39,800
Accumulated Amortization	(16,242)	(15,600)
Accumulated Impairment Charge	(16,645)	(16,645)
Carrying Value	$ 6,913	$ 7,555
Weighted Average Amortization Period	11 years 4 months 24 days	11 years 4 months 24 days
Construction Contract Backlog [Member]
Finite-Lived intangible assets
Cost	$ 73,706	$ 73,706
Accumulated Amortization	$ (73,706)	$ (73,706)
Weighted Average Amortization Period		3 years 7 months 6 days

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Employee Pension Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Summary of net periodic benefit cost
Interest cost	$ 1,011	$ 1,030	$ 2,022	$ 2,060
Expected return on plan assets	(1,256)	(1,192)	(2,512)	(2,384)
Amortization of net loss	1,460	1,077	2,920	2,154
Net periodic benefit cost	$ 1,215	$ 915	2,430	1,830
Company contribution			1,400	$ 1,500
Expected contributions remainder of current fiscal year			$ 1,300

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CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 106,917	$ 135,583
Restricted cash	39,493	44,370
Accounts receivable, including retainage	1,553,514	1,479,504
Costs and estimated earnings in excess of billings	816,480	726,402
Deferred income taxes	17,952	17,962
Other current assets	103,243	68,735
Total current assets	2,637,599	2,472,556
PROPERTY AND EQUIPMENT (net of accumulated depreciation of $237,168 in 2015 and $220,028 in 2014)	537,833	527,602
OTHER ASSETS:
Goodwill	585,006	585,006
Intangible assets, net	98,368	100,254
Other	84,830	87,897
Total assets	3,943,636	3,773,315
CURRENT LIABILITIES:
Current maturities of long-term debt	86,101	81,292
Accounts payable, including retainage	963,230	798,174
Billings in excess of costs and estimated earnings	263,400	319,296
Accrued expenses and other current liabilities	166,198	159,814
Total current liabilities	1,478,929	1,358,576
LONG-TERM DEBT, less current maturities	806,652	784,067
DEFERRED INCOME TAXES	150,193	150,371
OTHER LONG-TERM LIABILITIES	113,284	114,796
Total liabilities	$ 2,549,058	$ 2,407,810
CONTINGENCIES AND COMMITMENTS
STOCKHOLDERS' EQUITY:
Preferred stock, $1 par value: Authorized - 1,000,000 shares Issued and outstanding - none
Common stock - $1 par value: 75,000,000 shares authorized; Shares issued and outstanding: 49,069,589 shares and 48,671,492 shares	$ 49,070	$ 48,671
Additional paid-in capital	1,039,425	1,025,941
Retained earnings	349,414	332,511
Accumulated other comprehensive loss	(43,331)	(41,618)
Total stockholders' equity	1,394,578	1,365,505
Total liabilities and stockholders' equity	$ 3,943,636	$ 3,773,315

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Stock-Based Compensation (Schedule of Restricted Stock Unit Activity) (Details) - Restricted Stock Units [Member] - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Number of Shares
Granted and Unvested, Beginning of Period, Number of Shares	1,056,597
Vested, Number of Shares	(365,940)
Granted, Number of Shares	321,500
Forfeited, Number of Shares	(1,560)
Total Granted and Unvested, Number of Shares	1,010,597
Approved for grant, Number of Shares	709,500
Total Awarded and Unvested, End of Period, Number of Shares	1,720,097
Weighted Average Grant Date Fair Value
Granted and Unvested, Beginning of Period, Weighted Average Grant Date Fair Value	$ 26.54
Vested, Weighted Average Grant Date Fair Value	27.18
Granted, Weighted Average Grant Date Fair Value	23.07	$ 27.33
Forfeited, Weighted Average Grant Date Fair Value	28.59
Total Granted and Unvested, End of Period, Weighted Average Grant Date Fair Value	$ 26.70
Aggregate Intrinsic Value
Granted and Unvested, Beginning of Period, Aggregate Intrinsic Value	$ 25,432
Vested, Aggregate Intrinsic Value	7,896
Granted, Aggregate Intrinsic Value	6,938
Total Granted and Unvested, Aggregate Intrinsic Value	21,809
Approved for grant, Aggregate Intrinsic Value	15,311
Total Awarded and Unvested, End of Period, Aggregate Intrinsic Value	$ 37,120

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CONSOLIDATED CONDENSED STATEMENT OF STOCKHOLDERS' EQUITY - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Total
Balance at Dec. 31, 2014	$ 48,671	$ 1,025,941	$ 332,511	$ (41,618)	$ 1,365,505
Net income			16,903		16,903
Other comprehensive income/(loss)				(1,713)	(1,713)
TOTAL COMPREHENSIVE INCOME					15,190
Tax effect of stock-based compensation		(162)			(162)
Stock-based compensation expense		13,324			13,324
Issuance of common stock, net	399	322			721
Balance at Jun. 30, 2015	$ 49,070	$ 1,039,425	$ 349,414	$ (43,331)	$ 1,394,578

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Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Long-term Debt
Transfers between Levels 1 and 2, description	The Company did not have any transfers between Levels 1 and 2 of financial assets or liabilities that are fair valued on a recurring basis during the three and six months ended June 30, 2015 and 2014.
Fair Value [Member] | Senior Unsecured Notes [Member]
Long-term Debt
Debt	$ 310.1	$ 310.3
Carrying Value [Member] | Senior Unsecured Notes [Member]
Long-term Debt
Debt	298.9	298.8
Carrying Value [Member] | Other Long-Term Debt [Member]
Long-term Debt
Debt	$ 593.9	$ 566.6
Contingent Consideration [Member] | Minimum [Member[
Long-term Debt
Fair value inputs, discount rate (as a percent)	14.00%
Contingent Consideration [Member] | Maximum [Member]
Long-term Debt
Fair value inputs, discount rate (as a percent)	18.00%

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Separate Financial Information of Subsidiary Guarantors of Indebtedness

6 Months Ended

Jun. 30, 2015

Separate Financial Information of Subsidiary Guarantors of Indebtedness [Abstract]

Separate Financial Information of Subsidiary Guarantors of Indebtedness

(15)     Separate Financial Information of Subsidiary Guarantors of Indebtedness

The Company’s obligation to pay principal and interest on its 7.625% senior unsecured notes due November 1, 2018, is guaranteed on a joint and several basis by substantially all of the Company’s existing and future subsidiaries that guarantee obligations under the Company’s Sixth Amended Credit Agreement (the “Guarantors”). The guarantees are full and unconditional and the Guarantors are 100%-owned by the Company.

The following supplemental condensed consolidating financial information reflects the summarized financial information of the Company as the issuer of the senior unsecured notes, the Guarantors and the Company’s non-guarantor subsidiaries on a combined basis.

CONDENSED CONSOLIDATING BALANCE SHEET - JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
ASSETS
Cash and Cash Equivalents	$	63,130	$	30,780	$	13,007	$	—	$	106,917
Restricted Cash		3,369		4,935		31,189		—		39,493
Accounts Receivable		432,447		1,180,502		39,656		(99,091)		1,553,514
Costs and Estimated Earnings in Excess of Billings		87,446		801,198		152		(72,316)		816,480
Deferred Income Taxes		2,323		15,629		—		—		17,952
Other Current Assets		51,069		49,382		38,448		(35,656)		103,243
Total Current Assets	$	639,784	$	2,082,426	$	122,452	$	(207,063)	$	2,637,599
Long-term Investments	$	—	$	—	$	—	$	—	$	—
Property and Equipment, net		108,970		424,659		4,204		—		537,833
Intercompany Notes and Receivables		—		183,867		—		(183,867)		—
Other Assets:
Goodwill		—		585,006		—		—		585,006
Intangible Assets, net		—		98,368		—		—		98,368
Investment in Subsidiaries		2,144,042		4		50		(2,144,096)		—
Other		80,149		10,230		—		(5,549)		84,830
	$	2,972,945	$	3,384,560	$	126,706	$	(2,540,575)	$	3,943,636
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Maturities of Long-term Debt	$	40,737	$	45,364	$	—	$	—	$	86,101
Accounts Payable		239,992		862,841		917		(140,520)		963,230
Billings in Excess of Costs and Estimated Earnings		97,399		176,263		34		(10,296)		263,400
Accrued Expenses and Other Current Liabilities		22,437		100,349		64,390		(20,978)		166,198
Total Current Liabilities	$	400,565	$	1,184,817	$	65,341	$	(171,794)	$	1,478,929
Long-term Debt, less current maturities		752,931		94,307		—		(40,586)		806,652
Deferred Income Taxes		142,279		7,914		—		—		150,193
Other Long-term Liabilities		111,290		1,994		—		—		113,284
Intercompany Notes and Advances Payable		152,397		—		31,470		(183,867)		—
Contingencies and Commitments		—		—		—		—		—
Stockholders’ Equity		1,413,483		2,095,528		29,895		(2,144,328)		1,394,578
	$	2,972,945	$	3,384,560	$	126,706	$	(2,540,575)	$	3,943,636

CONDENSED CONSOLIDATING BALANCE SHEET - DECEMBER 31, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
ASSETS
Cash and Cash Equivalents	$	75,087	$	36,764	$	23,732	$	—	$	135,583
Restricted Cash		3,369		5,274		35,727		—		44,370
Accounts Receivable		299,427		1,246,635		37,064		(103,622)		1,479,504
Costs and Estimated Earnings in Excess of Billings		70,344		700,362		152		(44,456)		726,402
Deferred Income Taxes		—		15,639		—		2,323		17,962
Other Current Assets		39,196		42,750		24,397		(37,608)		68,735
Total Current Assets	$	487,423	$	2,047,424	$	121,072	$	(183,363)	$	2,472,556
Long-term Investments		—		—		—		—		—
Property and Equipment, net		92,413		430,876		4,313		—		527,602
Intercompany Notes and Receivables		—		122,401		—		(122,401)		—
Other Assets:
Goodwill		—		585,006		—		—		585,006
Intangible Assets, net		—		100,254		—		—		100,254
Investment in Subsidiaries		2,154,562		19,519		50		(2,174,131)		—
Other		83,503		9,847		—		(5,453)		87,897
	$	2,817,901	$	3,315,327	$	125,435	$	(2,485,348)	$	3,773,315
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Maturities of Long-term Debt		34,776		46,516		—		—		81,292
Accounts Payable		186,958		716,851		3,749		(109,384)		798,174
Billings in Excess of Costs and Estimated Earnings		139,020		185,807		2,672		(8,203)		319,296
Accrued Expenses and Other Current Liabilities		33,018		95,177		58,571		(26,952)		159,814
Total Current Liabilities	$	393,772	$	1,044,351	$	64,992	$	(144,539)	$	1,358,576
Long-term Debt, less current maturities		712,460		112,060		—		(40,453)		784,067
Deferred Income Taxes		142,457		7,914		—		—		150,371
Other Long-term Liabilities		112,899		1,897		—		—		114,796
Intercompany Notes and Advances Payable		90,373		—		35,619		(125,992)		—
Contingencies and Commitments		—		—		—		—		—
Stockholders’ Equity		1,365,939		2,149,105		24,824		(2,174,363)		1,365,505
	$	2,817,900	$	3,315,327	$	125,435	$	(2,485,347)	$	3,773,315

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

THREE MONTHS ENDED JUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	309,217	$	1,065,766	$	2,793	$	(65,338)	$	1,312,438
Cost of Operations		265,129		1,014,027		—		(65,338)		1,213,818
Gross Profit	$	44,088	$	51,739	$	2,793	$	—	$	98,620
General and Administrative Expenses		25,289		41,985		465		—		67,739
INCOME FROM CONSTRUCTION OPERATIONS	$	18,799	$	9,754	$	2,328	$	—	$	30,881
Equity in Earnings of Subsidiaries		6,586		—		—		(6,586)		—
Other (Expense) Income, net		(466)		431		135		—		100
Interest Expense		(10,134)		(855)		—		—		(10,989)
Income (Loss) before Income Taxes		14,785		9,330		2,463		(6,586)		19,992
Benefit (Provision) for Income Taxes		(3,008)		(4,121)		(1,086)		—		(8,215)
NET INCOME (LOSS)	$	11,777	$	5,209	$	1,377	$	(6,586)	$	11,777
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		(1,220)		—		—		1,220		—
Foreign currency translation		—		(1,146)		—		—		(1,146)
Change in fair value of investments		—		(74)		—		—		(74)
Change in fair value of interest rate swap		60		—		—		—		60
Total Other Comprehensive (Loss) Income	$	(1,160)	$	(1,220)	$	—	$	1,220	$	(1,160)
Total Comprehensive Income (Loss)	$	10,617	$	3,989	$	1,377	$	(5,366)	$	10,617

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

THREE MONTHS ENDED JUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	207,944	$	918,146	$	—	$	(41,580)	$	1,084,510
Cost of Operations		177,877		827,097		(8,415)		(41,580)		954,979
Gross Profit	$	30,067	$	91,049	$	8,415	$	—	$	129,531
General and Administrative Expenses		18,985		44,625		478		—		64,088
INCOME FROM CONSTRUCTION OPERATIONS	$	11,082	$	46,424	$	7,937	$	—	$	65,443
Equity in Earnings of Subsidiaries		31,748		—		—		(31,748)		—
Other (Expense) Income, net		(6,684)		(418)		128		—		(6,974)
Interest Expense		(9,809)		(1,048)		—		—		(10,857)
Income (Loss) before Income Taxes	$	26,337	$	44,958	$	8,065	$	(31,748)	$	47,612
Benefit (Provision) for Income Taxes		2,208		(18,062)		(3,213)		—		(19,067)
NET INCOME (LOSS)	$	28,545	$	26,896	$	4,852	$	(31,748)	$	28,545
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		340		—		—		(340)		—
Foreign currency translation		—		347		—		—		347
Change in fair value of investments		—		(7)		—		—		(7)
Change in fair value of interest rate swap		76		—		—		—		76
Total Other Comprehensive (Loss) Income	$	416	$	340	$	—	$	(340)	$	416
Total Comprehensive Income (Loss)	$	28,961	$	27,236	$	4,852	$	(32,088)	$	28,961

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

SIX MONTHS ENDEDJUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	545,509	$	1,950,869	$	7,084	$	(124,559)	$	2,378,903
Cost of Operations		474,962		1,839,121		—		(124,559)		2,189,524
Gross Profit	$	70,547	$	111,748	$	7,084	$	—	$	189,379
General and Administrative Expenses		50,324		87,151		939		—		138,414
INCOME FROM CONSTRUCTION OPERATIONS	$	20,223	$	24,597	$	6,145	$	—	$	50,965
Equity in Earnings of Subsidiaries		18,526		—		—		(18,526)		—
Other (Expense) Income, net		(2,535)		1,627		253		—		(655)
Interest Expense		(20,397)		(1,716)		—		—		(22,113)
Income (loss) before Income Taxes		15,817		24,508		6,398		(18,526)		28,197
Benefit (Provision) for Income Taxes		1,086		(9,817)		(2,563)		—		(11,294)
NET INCOME (LOSS)	$	16,903	$	14,691	$	3,835	$	(18,526)	$	16,903
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		(1,818)		—		—		1,818		—
Foreign currency translation		—		(1,734)		—		—		(1,734)
Change in fair value of investments		—		(84)		—		—		(84)
Change in fair value of interest rate swap		105		—		—		—		105
Total Other Comprehensive (Loss) Income		(1,713)		(1,818)		—		1,818		(1,713)
Total Comprehensive Income (Loss)	$	15,190	$	12,873	$	3,835	$	(16,708)	$	15,190

CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS

SIX MONTHS ENDEDJUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Revenues	$	434,791	$	1,681,782	$	—	$	(76,830)	$	2,039,743
Cost of Operations		371,691		1,525,005		(15,001)		(76,830)		1,804,865
Gross Profit		63,100		156,777		15,001		—		234,878
General and Administrative Expenses		36,780		90,245		913		—		127,938
INCOME FROM CONSTRUCTION OPERATIONS		26,320		66,532		14,088		—		106,940
Equity in Earnings of Subsidiaries		47,029		—		—		(47,029)		—
Other (Expense) Income, net		(10,779)		184		248		—		(10,347)
Interest Expense		(19,826)		(1,862)		—		—		(21,688)
Income (Loss) before Income Taxes		42,744		64,854		14,336		(47,029)		74,905
Benefit (Provision) for Income Taxes		1,740		(26,339)		(5,822)		—		(30,421)
NET INCOME  (LOSS)	$	44,484	$	38,515	$	8,514	$	(47,029)	$	44,484
Other Comprehensive Income:
Other Comprehensive Income of Subsidiaries		235		—		—		(235)		—
Change in pension benefit plans assets/liabilities		—		—		—		—		—
Foreign currency translation		—		61		—		—		61
Change in fair value of investments		—		174		—		—		174
Change in fair value of interest rate swap		157		—		—		—		157
Total Other Comprehensive (Loss) Income		392		235		—		(235)		392
Total Comprehensive Income (Loss)	$	44,876	$	38,750	$	8,514	$	(47,264)	$	44,876

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

SIX MONTHS ENDEDJUNE 30, 2015

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Cash Flows from Operating Activities:
Net income (loss)	$	16,903	$	14,691	$	3,835	$	(18,526)	$	16,903
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		5,964		15,333		137		—		21,434
Equity in earnings of subsidiaries		(18,526)		—		—		18,526		—
Stock-based compensation expense		13,324		—		—		—		13,324
Excess income tax benefit from stock-based compensation		(162)		—		—		—		(162)
Adjustment of investments to fair value		—		—		—		—		—
Adjustment interest rate swap to fair value		—		—		—		—		—
Deferred income taxes		(177)		—		—		—		(177)
(Gain) loss on sale of investments		—		—		—		—		—
(Gain) loss on sale of property and equipment		29		(342)		—		—		(313)
Other long-term liabilities		(56)		98		—		—		42
Other non-cash items		1,881		(5,140)		—		—		(3,259)
Changes in other components of working capital		(159,846)		96,590		(16,294)		—		(79,550)
NET CASH (USED) PROVIDED BY OPERATING ACTIVITIES	$	(140,666)	$	121,230	$	(12,322)	$	—	$	(31,758)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases		—		(29,516)		(28)		—		(29,544)
Proceeds from sale of property and equipment		(21,505)		22,627		—		—		1,122
Proceeds from sale of available-for-sale securities		—		—		—		—		—
(Increase) decrease in intercompany advances		—		(101,660)		—		101,660		—
Change in restricted cash		—		339		4,538		—		4,877
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	$	(21,505)	$	(108,210)	$	4,510	$	101,660	$	(23,545)
Cash Flows from Financing Activities:
Proceeds from debt		473,362		128		—		—		473,490
Repayment of debt		(427,107)		(19,132)		—		—		(446,239)
Business acquisition-related payments		—		—		—		—		—
Excess income tax benefit from stock-based compensation		162		—		—		—		162
Issuance of common stock and effect of cashless exercise		(776)		—		—		—		(776)
Debt Issuance Costs		—		—		—		—		—
Increase (decrease) in intercompany advances		104,573		—		(2,913)		(101,660)		—
NET CASH (USED) PROVIDED BY FINANCING ACTIVITIES	$	150,214	$	(19,004)	$	(2,913)	$	(101,660)	$	26,637
Net (Decrease) Increase in Cash and Cash Equivalents		(11,957)		(5,984)		(10,725)		—		(28,666)
Cash and Cash Equivalents at Beginning of Year		75,087		36,764		23,732		—		135,583
Cash and Cash Equivalents at End of Period	$	63,130	$	30,780	$	13,007	$	—	$	106,917

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

SIX MONTHS ENDEDJUNE 30, 2014

(Unaudited-in thousands)

					Non-
	Tutor Perini		Guarantor		Guarantor				Total
	Corporation		Subsidiaries		Subsidiaries		Eliminations		Consolidated
Cash Flows from Operating Activities:
Net income (loss)	$	44,484	$	38,515	$	8,514	$	(47,029)	$	44,484
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		4,866		25,077		135		—		30,078
Equity in earnings of subsidiaries		(47,029)		—		—		47,029		—
Stock-based compensation expense		9,920		—		—		—		9,920
Deferred income taxes		4,672		(4,736)		—		—		(64)
(Gain) loss on sale of investments		1,786		—		—		—		1,786
(Gain) loss on sale of property and equipment		—		427		—		—		427
Other long-term liabilities		6,624		(1,065)		—		—		5,559
Other non-cash items		(3,620)		5,182		—		—		1,562
Changes in other components of working capital		(53,928)		(104,577)		3,318		—		(155,187)
NET CASH PROVIDED (USED) BY OPERATING ACTIVITIES	$	(32,225)	$	(41,177)	$	11,967	$	—	$	(61,435)
Cash Flows from Investing Activities:
Acquisition of property and equipment		(16,715)		(10,015)		—		—		(26,730)
Proceeds from sale of property and equipment		—		1,906		—		—		1,906
Proceeds from sale of available-for-sale securities		44,497		—		—		—		44,497
Change in restricted cash		15,465		(10)		(15,488)		—		(33)
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	$	43,247	$	(8,119)	$	(15,488)	$	—	$	19,640
Cash Flows from Financing Activities:
Proceeds from debt		685,079		32,405		—		—		717,484
Repayment of debt		(604,773)		(44,509)		—		—		(649,282)
Business acquisition related payments		(1,226)		(34)		—		—		(1,260)
Issuance of common stock and effect of cashless exercise		(1,531)		—		—		—		(1,531)
Debt issuance costs		—		(3,681)		—		—		(3,681)
Increase (decrease) in intercompany advances		(96,181)		97,506		(1,325)		—		—
NET CASH (USED) PROVIDED BY FINANCING ACTIVITIES	$	(18,632)	$	81,687	$	(1,325)	$	—	$	61,730
Net Increase (Decrease) in Cash and Cash Equivalents		(7,610)		32,391		(4,846)		—		19,935
Cash and Cash Equivalents at Beginning of Year		88,995		18,031		12,897		—		119,923
Cash and Cash Equivalents at End of Period	$	81,385	$	50,422	$	8,051	$	—	$	139,858

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Fair Value Measurements (Schedule of Financial Statement Items Carried at Estimated Fair Value) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 05, 2014
Assets:
Restricted cash	$ 39,493,000	$ 44,370,000
Tutor Perini Corporation [Member]
Assets:
Restricted cash	3,369,000	3,369,000
Fair Value Measured On A Recurring Basis [Member] | Quoted prices in active markets (Level 1) [Member]
Assets:
Cash and cash equivalents	106,917,000	135,583,000
Restricted cash	39,493,000	44,370,000
Investments in lieu of retainage	26,579,000	25,761,000
Total assets	172,989,000	205,714,000
Fair Value Measured On A Recurring Basis [Member] | Significant other observable inputs (Level 2) [Member]
Assets:
Investments in lieu of retainage	9,903,000	7,463,000
Total assets	9,903,000	7,463,000
Liabilities:
Interest rate swap contract	208,000	381,000
Total liabilities	208,000	381,000
Fair Value Measured On A Recurring Basis [Member] | Significant unobservable inputs (Level 3) [Member]
Liabilities:
Contingent consideration	26,334,000	24,814,000
Total liabilities	26,334,000	24,814,000
Carrying Value [Member] | Fair Value Measured On A Recurring Basis [Member]
Assets:
Cash and cash equivalents	106,917,000	135,583,000
Restricted cash	39,493,000	44,370,000
Investments in lieu of retainage	36,482,000	33,224,000
Total assets	182,892,000	213,177,000
Liabilities:
Interest rate swap contract	208,000	381,000
Contingent consideration	26,334,000	24,814,000
Total liabilities	26,542,000	$ 25,195,000
Term Loan [Member]
Liabilities:
Face amount	$ 250,000,000		$ 200,000,000
Term of debt	5 years
Issuance date	Jun. 05, 2014
Maturity date	Jun. 05, 2019

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Cash and Cash Equivalents and Restricted Cash (Tables)

6 Months Ended

Jun. 30, 2015

Cash and Cash Equivalents and Restricted Cash [Abstract]

Cash and Cash Equivalents and Restricted Cash

	June 30,		December 31,
	2015		2014
	(in thousands)
Corporate cash and cash equivalents (available for general corporate purposes)	$	48,394	$	40,846
Company's share of joint venture cash and cash equivalents (available only for joint venture purposes, including future distributions)		58,523		94,737
Total Cash and Cash Equivalents	$	106,917	$	135,583
Restricted Cash	$	39,493	$	44,370

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CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash Flows from Operating Activities:
Net income	$ 16,903	$ 44,484
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	21,434	30,078
Stock-based compensation expense	13,324	9,920
Excess income tax benefit from stock-based compensation	(162)
Deferred income taxes	(177)	(64)
Loss on sale of investments		1,786
(Gain) loss on sale of property and equipment	(313)	427
Other long-term liabilities	42	5,559
Other non-cash items	(3,259)	1,562
Changes in other components of working capital	(79,550)	(155,187)
NET CASH USED IN OPERATING ACTIVITIES	(31,758)	(61,435)
Cash Flows from Investing Activities:
Acquisition of property and equipment excluding financed purchases	(29,544)	(26,730)
Proceeds from sale of property and equipment	1,122	1,906
Proceeds from sale of available-for-sale securities		44,497
Change in restricted cash	4,877	(33)
NET CASH (USED BY) PROVIDED BY INVESTING ACTIVITIES	(23,545)	19,640
Cash Flows from Financing Activities:
Proceeds from debt	473,490	717,484
Repayment of debt	(446,239)	(649,282)
Business acquisition-related payments		(1,260)
Excess income tax benefit from stock-based compensation	162
Issuance of common stock and effect of cashless exercise	(776)	(1,531)
Debt issuance costs		(3,681)
NET CASH PROVIDED BY FINANCING ACTIVITIES	26,637	61,730
Net (Decrease) Increase in Cash and Cash Equivalents	(28,666)	19,935
Cash and Cash Equivalents at Beginning of Year	135,583	119,923
Cash and Cash Equivalents at End of Period	106,917	139,858
Supplemental Disclosure of Cash Paid For:
Interest	26,148	21,830
Income taxes	$ 19,717	33,668
Supplemental Disclosure of Non-cash Transactions:
Property and equipment acquired through financing arrangements not included above		$ 27,045

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CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Accumulated depreciation	$ 237,168	$ 220,028
STOCKHOLDERS' EQUITY:
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	49,069,589	48,671,492
Common stock, shares outstanding	49,069,589	48,671,492

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Financial Commitments

6 Months Ended

Jun. 30, 2015

Financial Commitments [Abstract]

Financial Commitments

(10)     Financial Commitments

Amended Credit Agreement

On June 5, 2014, the Company entered into a Sixth Amended and Restated Credit Agreement, (the “Credit Facility”) restructuring its former $300 million revolving credit facility and $200 million Term Loan. All outstanding amounts under the Fifth Amended and Restated Credit Agreement were repaid in full using proceeds of the Credit Facility. The new agreement provides for a $300 million revolving credit facility (the “Revolving Credit Facility") and a  $250 million term loan (the “Term Loan”) with Bank of America, N.A. as Administrative Agent, Swing Line Lender and L/C Issuer and a syndicate of other lenders. The Term Loan principal is to be repaid on a quarterly basis, with 6.0% of the original total outstanding principal repaid in year 1, 9.0% in year 2, 12.0% in year 3, 15.0% in year 4 and 13.5% in year 5 along with a balloon payment of the remaining 44.5% due at maturity. Borrowings under the Revolving Credit Facility bear interest based either on Bank of America’s prime lending rate or the London Interbank Offered Rate (“LIBOR”) plus an applicable margin. Borrowings under the Term Loan bear interest based on LIBOR plus an applicable margin. Included in the Credit Facility is a special provision allowing an additional accordion provision, which the Company may opt to utilize at a future date to increase either the Revolving Credit Facility or establish one or more new term loan commitments, up to an aggregate amount not to exceed $300 million. The Credit Facility provides a sublimit for the issuance of letters of credit up to the aggregate amount of $150 million. Both the Revolving Credit Facility and the Term Loan mature on June 5, 2019.

The Revolving Credit Facility and Term Loan include usual and customary covenants for credit facilities of this type, including covenants providing maximum allowable ranges of consolidated leverage ratios from 3.75:1.00 to 2.75:1.00 over a range of five years and maintaining a minimum consolidated fixed charge coverage ratio of 1.25:1.00. The Credit Facility eliminated the other covenant requirements that were formerly held under the Fifth Amended and Restated Credit Agreement.

Substantially all of the Company’s subsidiaries unconditionally guarantee the obligations of the Company under the Credit Facility. The obligations under the Credit Facility are secured by a lien on all personal property of the Company and its subsidiaries party thereto. Any outstanding loans under the Revolving Facility and the Term Loan mature on June 5, 2019. The Term Loan balance was $235.0 million at June 30, 2015. The Company was in compliance with the financial covenants under the Credit Facility for the period ended June 30, 2015.

The Company had $185.0 million of outstanding borrowings under its Revolving Facility as of June 30, 2015 and $130.0 million as of December 31, 2014. The net change in borrowings under the Revolving Facility comprises all “Proceeds from debt” and a significant portion of all “Repayment of debt” as presented in the Consolidated Condensed Statements of Cash Flows. The Company utilized the Revolving Facility for letters of credit in the amount of $0.2 million as of June 30, 2015 and $1.0 million as of December 31, 2014. Accordingly, at June 30, 2015, the Company had $114.8 million available to borrow under the Revolving Facility.

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 03, 2015
Document and Entity Information
Entity Registrant Name	TUTOR PERINI Corp
Entity Central Index Key	0000077543
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		49,069,589
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2

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Earnings per Common Share

6 Months Ended

Jun. 30, 2015

Earnings per Common Share [Abstract]

Earnings per Common Share

(11)     Earnings per Common Share

Basic earnings per common share were computed by dividing net income by the weighted average number of common shares outstanding. Diluted earnings per common share were similarly computed after giving consideration to the dilutive effect of stock options and restricted stock unit awards outstanding on the weighted average number of common shares outstanding. The computation of diluted earnings per common share for the three and six months endedJune 30, 2015excluded the antidilutive effect of 120,097 and 65,049 antidilutive restricted stock awards. The computation of diluted earnings per common share for the three and six months ended June 30, 2015 excluded the antidilutive effect of 628,000 and 573,500 stock options.

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CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
Revenues	$ 1,312,438	$ 1,084,510	$ 2,378,903	$ 2,039,743
Cost of operations	1,213,818	954,979	2,189,524	1,804,865
Gross profit	98,620	129,531	189,379	234,878
General and administrative expenses	67,739	64,088	138,414	127,938
INCOME FROM CONSTRUCTION OPERATIONS	30,881	65,443	50,965	106,940
Other income (expense), net	100	(6,974)	(655)	(10,347)
Interest expense	(10,989)	(10,857)	(22,113)	(21,688)
Income before income taxes	19,992	47,612	28,197	74,905
Provision for income taxes	(8,215)	(19,067)	(11,294)	(30,421)
NET INCOME	$ 11,777	$ 28,545	$ 16,903	$ 44,484
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.24	$ 0.59	$ 0.35	$ 0.92
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.24	$ 0.58	$ 0.34	$ 0.91
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	49,028	48,543	48,890	48,492
Effect of dilutive stock options and restricted stock units (in shares)	800	510	798	500
DILUTED (in shares)	49,828	49,053	49,688	48,992

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Fair Value Measurements

6 Months Ended

Jun. 30, 2015

Fair Value Measurements [Abstract]

Fair Value Measurements

(5)     Fair Value Measurements

The Company measures certain financial instruments, including cash and cash equivalents, such as money market funds, at fair value. The fair values were determined based on a three-tier valuation hierarchy for disclosure of significant inputs. These hierarchical tiers are defined as follows:

Level 1 — inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2 — inputs are other than quoted prices in active markets that are either directly or indirectly observable through market corroboration.

Level 3 — inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions based on the best information available in the circumstances.

The carrying amount of cash and cash equivalents approximates fair value due to the short-term nature of these items. The carrying value of receivables, payables and other amounts arising out of normal contract activities, including retainage, which may be settled beyond one year, is estimated to approximate fair value. Of the Company’s long-term debt, the fair values of the fixed rate senior unsecured notes as of June 30, 2015 and December 31, 2014 were $310.1 million and $310.3 million, respectively, compared to the carrying value of $298.9 million and $298.8 million as of June 30, 2015 and December 31, 2014, respectively. The fair value of the senior unsecured notes was estimated using Level 1 inputs based on market quotations including broker quotes or interest rates for the same financial instruments at June 30, 2015 and December 31, 2014. The carrying values of the remaining balance of the Company’s long-term debt of $593.9 million and $566.6 million at June 30, 2015 and December 31, 2014, respectively, were estimated to approximate their fair values.

The following is a summary of financial statement items carried at estimated fair values measured on a recurring basis as of the dates presented:

			Fair Value Measurements Using
						Significant
				Quoted prices		other		Significant
		Total		in active		observable		unobservable
		Carrying		markets		inputs		inputs
As of June 30, 2015		Value		(Level 1)		(Level 2)		(Level 3)
	(in thousands)
Assets:
Cash and cash equivalents (a)	$	106,917	$	106,917	$	—	$	—
Restricted cash (a)		39,493		39,493		—		—
Investments in lieu of retainage (b)		36,482		26,579		9,903		—
Total	$	182,892	$	172,989	$	9,903	$	—
Liabilities:
Interest rate swap contract (c)	$	208	$	—	$	208	$	—
Contingent consideration (d)		26,334		—		—		26,334
	$	26,542	$	—	$	208	$	26,334

			Fair Value Measurements Using
						Significant
				Quoted prices		other		Significant
		Total		in active		observable		unobservable
		Carrying		markets		inputs		inputs
As of December 31, 2014		Value		(Level 1)		(Level 2)		(Level 3)
	(in thousands)
Assets:
Cash and cash equivalents (a)	$	135,583	$	135,583	$	—	$	—
Restricted cash (a)		44,370		44,370		—		—
Investments in lieu of retainage (b)		33,224		25,761		7,463		—
Total	$	213,177	$	205,714	$	7,463	$	—
Liabilities:
Interest rate swap contract (c)	$	381	$	—	$	381	$	—
Contingent consideration (d)		24,814		—		—		24,814
	$	25,195	$	—	$	381	$	24,814

(a) Cash, cash equivalents and restricted cash consist primarily of money market funds with original maturity dates of three months or less, for which fair value is determined through quoted market prices.

(b) Investments in lieu of retainage are classified as account receivables, including retainage and are comprised primarily of money market funds for which fair value is determined through quoted market prices. Investment in lieu of retainage also includes U.S. Treasury Notes and other municipal bonds for which fair value is determined through quoted market prices and other similar high quality investments whose values are determined from readily-available pricing sources for comparable instruments.

(c) As discussed in Note 10 — Financial Commitments, the Company entered into a swap agreement with Bank of America, N.A. to establish a long-term interest rate for its former $200 million five-year term loan. The swap agreement became effective for the term loan principal balance outstanding at January 31, 2012. This term loan was paid off and the then current amount refinanced on June 5, 2014, providing for a $250 million term loan maturing on June 5, 2019. The interest rate swap continues on its original basis for the initial term and amount and finalizes on June 30, 2016. Bank of America calculates the fair market value of the interest rate swap liability by utilizing a mark-to-market valuation model that is based on current observable interest rates, expected future interest rates and the Company’s credit risk. The Company reviews the mark-to-market valuation when determining the fair value of the interest rate swap liability to be recognized. This liability is classified as a component of other long-term liabilities.

(d) The liabilities listed as of June 30, 2015 and December 31, 2014 above represent the contingent consideration for the Company’s acquisitions in 2011 for which the measurement periods for purchase price analyses for the acquisitions have concluded.

The Company did not have any transfers between Levels 1 and 2 of financial assets or liabilities that are fair valued on a recurring basis during the three and six months endedJune 30, 2015 and 2014.

The following is a summary of changes in Level 3 liabilities measured at fair value on a recurring basis during the three and six months endedJune 30, 2015 and 2014:

	Contingent
	Consideration
	(in thousands)
Balance at December 31, 2014	$	24,814
Fair value adjustments included in other income (expense), net		746
Contingent consideration settled		—
Balance at March 31, 2015	$	25,560
Fair value adjustments included in other income (expense), net		774
Contingent consideration settled		—
Balance at June 30, 2015	$	26,334

	Contingent
	Consideration
	(in thousands)
Balance at December 31, 2013	$	46,022
Fair value adjustments included in other income (expense), net		3,404
Contingent consideration settled		(1,031)
Balance at March 31, 2014	$	48,395
Fair value adjustments included in other income (expense), net		2,162
Contingent consideration settled		(229)
Balance at June 30, 2014	$	50,328

The fair values of the contingent consideration were estimated using an income approach based on the cash flows that the acquired entity is expected to generate in the future. This approach requires management to project revenues, operating expenses, working capital investment, capital spending and cash flows for the reporting unit over a multi-year period, as well as determine the weighted-average cost of capital to be used as a discount rate (weighted-average cost of capital inputs have ranged from 14%-18%).

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Costs and estimated earnings in excess of billings

6 Months Ended

Jun. 30, 2015

Costs and estimated earnings in excess of billings [Abstract]

Costs and estimated earnings in excess of billings

(4)     Costs and estimated earnings in excess of billings

Costs and estimated earnings in excess of billings related to the Company’s contracts and joint venture contracts consisted of the following:

	June 30,		December 31,
	2015		2014
	(in thousands)
Unbilled costs and profits incurred to date (a)	$	248,561	$	253,078
Unapproved change orders		274,134		161,375
Claims		293,785		311,949
	$	816,480	$	726,402

(a) Represents the excess of contract costs and profits recognized to date on the percentage of completion accounting method over the amount of contract billings to date on certain contracts.

Of the balance of “Unapproved change orders” and “Claims” included above in costs and estimated earnings in excess of billings atJune 30, 2015 and December 31, 2014,  approximately $41.3 million and$38.4 million, respectively, are the amounts subject to pending litigation or dispute resolution proceedings as described in Note 7 — Contingencies and Commitments. These amounts are management’s estimate of the probable cost recovery from the disputed claims considering such factors as evaluation of entitlement, settlements reached to date and experience with the customer. In the event that future facts and circumstances, including the resolution of disputed claims, cause a reduction in the aggregate amount of the estimated probable cost recovery from the disputed claims, the amount of such reduction will be recorded against earnings in the relevant future period.

The prerequisite for billing “Unbilled costs and profits incurred to date” is provided in the defined billing terms of each of the applicable contracts. The prerequisite for billing “Unapproved change orders” or “Claims” is the final resolution and agreement between the parties.

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Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2015

Significant Accounting Policies [Abstract]

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update (“ASU”) ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition. This ASU addresses when an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In July 2015, FASB delayed the effective date by one year and is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period, using one of two retrospective application methods. Early application would be permitted only as of annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently evaluating the effect that the adoption of this ASU will have on its financial statements.

In June 2014, the FASB issued ASU No. 2014-12, Compensation — Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, clarifying the recognition timing of expense associated with certain performance based stock awards when the performance target that affects vesting could be achieved after the requisite service period. This ASU is an update to FASB ASC Topic 718 and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 with earlier adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.

In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810). The goal of this ASU is to reduce the potentially distortive impact on reporting entities’ consolidated financial statements resulting from the consolidation of certain legal entities, including joint ventures and variable interest entities. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements. 

In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30). This ASU requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. The adoption of this ASU is not expected to have a material impact on the Company’s financial statements. 

Use of and Changes in Estimates

Use of and Changes in Estimates

The Company’s construction business involves making significant estimates and assumptions in the normal course of business relating to its contracts and its joint venture contracts. Management focuses on evaluating the performance of contracts individually.These estimatescan vary in the normal course of business as projects progress, when estimated productivity assumptions change based on experience to date and uncertainties are resolved.Change orders and claims, as well as changes in related estimates of costs to complete, are considered revisions in estimates. The Company uses the cumulative catch-upmethod applicable to construction contract accounting to account for revisions in estimates. The impact on operating margin in a reporting period and future periods from a change in estimate will depend on the stage of contract completion.

During the three months endedJune 30, 2015, the Company’s results of operations were negatively impacted because of an unfavorable change in the estimated cost to complete for a certain Building segment project. This change in estimate resulted in a $14.7 million decrease in income from construction operations, an $8.7 million decrease in net income, and a $0.17 decrease in diluted earnings per share (“EPS”) during the three months ended June 30, 2015.

During the three months ended June 30, 2014, the Company’s results of operations were positively impacted because of changes in the estimated cost recovery on two Civil segment projects based on certain legal rulings issued during the period. One project had a favorable ruling, resulting in a $24.2 million increase, and the second project had an unfavorable ruling, resulting in a $9.4 million decrease. Together, these changes in estimates resulted in a $14.8 million increase in income from construction operations, an $8.8 million increase in net income, and an $0.18 increase in diluted EPS during the three months ended June 30, 2014.

These changes were the only changes in estimates considered material to the Company’s results of operations during the periods presented herein.

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Business Segments

6 Months Ended

Jun. 30, 2015

Business Segments [Abstract]

Business Segments

(12)     Business Segments

The Company’s chief operating decision maker is the Chairman and Chief Executive Officer, who decides how to allocate resources and assess performance of the business segments. Generally, the Company evaluates performance of its operating segments on the basis of income from construction operations and cash flow.

The following table sets forth certain reportable segment information relating to the Company’s operation for the three andsix months endedJune 30, 2015 and 2014 (in thousands):

	Reportable Segments
					Specialty							Consolidated
(in thousands)	Civil			Building	Contractors		Totals		Corporate			Total
Three Months Ended June 30, 2015
Total revenues	$	573,360	$	472,247	$	326,798	$	1,372,405	$	—		$	1,372,405
Elimination of intersegment revenues		(39,180)		(20,843)		56		(59,967)		—			(59,967)
Revenues from external customers	$	534,180	$	451,404	$	326,854	$	1,312,438	$	—		$	1,312,438
Income from construction operations	$	46,329	$	(12,592)	$	13,743	$	47,480	$	(16,599)	(a)	$	30,881
Three Months Ended June 30, 2014
Total revenues	$	398,123	$	390,353	$	321,959	$	1,110,435	$	—		$	1,110,435
Elimination of intersegment revenues		(7,584)		(18,341)		—		(25,925)		—			(25,925)
Revenues from external customers	$	390,539	$	372,012	$	321,959	$	1,084,510	$	—		$	1,084,510
Income from construction operations	$	58,002	$	7,674	$	12,633	$	78,309	$	(12,866)	(a)	$	65,443
	Reportable Segments
					Specialty							Consolidated
(in thousands)	Civil			Building	Contractors		Totals		Corporate			Total
Six Months Ended June 30, 2015
Total revenues	$	966,236	$	888,309	$	619,816	$	2,474,361	$	—		$	2,474,361
Elimination of intersegment revenues		(57,382)		(38,076)		—		(95,458)		—			(95,458)
Revenues from external customers	$	908,854	$	850,233	$	619,816	$	2,378,903	$	—		$	2,378,903
Income from construction operations	$	76,923	$	(14,870)	$	24,267	$	86,320	$	(35,355)	(a)	$	50,965
Six Months Ended June 30, 2014
Total revenues	$	774,515	$	701,668	$	614,104	$	2,090,287	$	—		$	2,090,287
Elimination of intersegment revenues		(18,820)		(31,724)		—		(50,544)		—			(50,544)
Revenues from external customers	$	755,695	$	669,944	$	614,104	$	2,039,743	$	—		$	2,039,743
Income from construction operations	$	102,347	$	9,497	$	20,450	$	132,294	$	(25,354)	(a)	$	106,940

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

The following table sets forth certain reportable segment information relating to the Company’s total assets as of June 30, 2015 and December 31, 2014 (in thousands):

	June 30, 2015		December 31, 2014
(in thousands)
Building	$	671,060	$	680,933
Civil		1,934,040		1,814,170
Specialty Contractors		863,831		775,162
Totals	$	3,468,931	$	3,270,265
Corporate (a)		474,705		503,050
Consolidated Total	$	3,943,636	$	3,773,315

(a) Consists principally of Cash and Cash Equivalents and corporate transportation equipment.

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Income Taxes

6 Months Ended

Jun. 30, 2015

Income Taxes [Abstract]

Income Taxes

(8)     Income Taxes

The Company’s income tax provision was $8.2 million and $11.3 million for the three and six months endedJune 30, 2015 compared to the income tax provision of $19.1 million and $30.4 million for the three and six months endedJune 30, 2014. The effective income tax rate was 41.1% and 40.1% for the three and six months endedJune 30, 2015, respectively, compared to 40.0% and 40.6% for the same period in 2014.

As of June 30, 2015, the total amount of unrecognized tax benefits, including related interest and penalties was $7.9 million. If the total amount of unrecognized tax benefits was recognized, $6.8 million of unrecognized tax benefits and $1.1 million of interest would decrease the effective tax rate.

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Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets [Abstract]

Goodwill and Intangible Assets

(6)     Goodwill and Intangible Assets

The Company tests goodwill and intangible assets with indefinite lives for impairment by applying a fair value test in the fourth quarter of each year and between annual tests if events occur or circumstances change that suggest a material adverse change to the most recently concluded valuation. The Company did not observe any changes in facts or circumstances during the three andsix months endedJune 30, 2015 that would indicate a material adverse change to the fourth quarter 2014 concluded valuation.

The Company tests intangible assets with finite lives for impairment whenever events or circumstances indicate that the carrying value may not be recoverable. The Company did not observe any events or circumstances during the three and six months endedJune 30, 2015 that would indicate that the carrying value of its intangible assets may not be recoverable.

The following table presents the carrying amount of goodwill allocated to the Company’s reporting units as of June 30, 2015:

					Specialty
	Civil		Building		Contractors		Total
	(in thousands)
Gross Goodwill Balance	$	492,074	$	424,724	$	156,193	$	1,072,991
Accumulated Impairment		(76,716)		(411,269)		—		(487,985)
Balance at December 31, 2014	$	415,358	$	13,455	$	156,193	$	585,006
Current activity		—		—		—		—
Balance at June 30, 2015	$	415,358	$	13,455	$	156,193	$	585,006

Intangible assets consist of the following:

	June 30, 2015								Weighted
					Accumulated				Average
			Accumulated		Impairment		Carrying		Amortization
	Cost		Amortization		Charge		Value		Period
	(in thousands)
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)		74,350		(10,073)		(23,232)		41,045	20 years
Contractor license		6,000		—		(6,000)		—	Indefinite
Customer relationships		39,800		(16,242)		(16,645)		6,913	11.4 years
Construction contract backlog		73,706		(73,706)		—		—	N/A
Total	$	311,456	$	(100,021)	$	(113,067)	$	98,368

		December 31, 2014							Weighted
					Accumulated				Average
			Accumulated		Impairment		Carrying		Amortization
		Cost	Amortization		Charge		Value		Period
	(in thousands)
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)		74,350		(8,829)		(23,232)		42,289	20 years
Contractor license		6,000		—		(6,000)		—	Indefinite
Customer relationships		39,800		(15,600)		(16,645)		7,555	11.4 years
Construction contract backlog		73,706		(73,706)		—		—	3.6 years
Total	$	311,456	$	(98,135)	$	(113,067)	$	100,254

Amortization expense was $1.0 million and $1.9 millionfor the three and six months endedJune 30, 2015 compared to $3.7 million and $7.3 million during the same periods 2014. The following table presents estimated amortization expense of intangible assets for the remainder of 2015 and for the succeeding years:

Fiscal Year		(in millions
2015 (six months remaining)	$	1.8
2016		3.5
2017		3.5
2018		3.5
2019		3.5
Thereafter		32.2
Total	$	48.0

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Contingencies and Commitments

6 Months Ended

Jun. 30, 2015

Contingencies and Commitments [Abstract]

Contingencies and Commitments

(7) Contingencies and Commitments

The Company and certain of its subsidiaries are involved in litigation and are contingently liable for commitments and performance guarantees arising in the ordinary course of business. The Company and certain of its clients have made claims arising from the performance under their contracts. The Company recognizes certain significant claims for recovery of incurred cost when it is probable that the claim will result in additional contract revenue and when the amount of the claim can be reliably estimated. These assessments require judgments concerning matters such as litigation developments and outcomes, the anticipated outcome of negotiations, the number of future claims and the cost of both pending and future claims. In addition, because most contingencies are resolved over long periods of time, liabilities may change in the future due to various factors.

Several matters are in the litigation and dispute resolution process. The following discussion provides a background and current status of these matters.

Tutor-Saliba-Perini Joint Venture vs. Los Angeles MTA Matter

During 1995, Tutor-Saliba-Perini (“Joint Venture”) filed a complaint in the Superior Court of the State of California for the County of Los Angeles against the Los Angeles County Metropolitan Transportation Authority (“LAMTA”), seeking to recover costs for extra work required by LAMTA in connection with the construction of certain tunnel and station projects, all of which were completed by 1996. In 1999, LAMTA countered with civil claims under the California False Claims Act against the Joint Venture, Tutor-Saliba and the Company jointly and severally (together, “TSP”), and obtained a judgment that was reversed on appeal and remanded for retrial before a different judge.

Between 2005 and 2010, the court granted certain Joint Venture motions and LAMTA capitulated on others, which reduced the number of false claims LAMTA may seek and limited LAMTA’s claims for damages and penalties. In September 2010, LAMTA dismissed its remaining claims and agreed to pay the entire amount of the Joint Venture’s remaining claims plus interest. In the remanded proceedings, the Court subsequently entered judgment in favor of TSP and against LAMTA in the amount of $3.0 million after deducting $0.5 million, representing the tunnel handrail verdict plus accrued interest against TSP. The parties filed post-trial motions for costs and fees. The Court ruled that TSP’s sureties could recover costs, LAMTA could recover costs for the tunnel handrail trial, and no party could recover attorneys’ fees. TSP appealed the false claims jury verdict on the tunnel handrail claim and other issues, including the denial of TSP’s and its sureties’ request for attorneys’ fees. LAMTA subsequently filed its cross-appeal. In June 2014, the Court of Appeal issued its decision reversing judgment on the People’s Unfair Competition claim and reversing the denial of TSP’s Sureties’ request for attorney’s fees and affirming the remainder of the judgment. In January 2015, payment was made by LAMTA in the amount of $3.8 million in settlement of all outstanding issues except for the attorney’s fees for TSP’s Sureties.

On May 1, 2015, TSP’s Surety’s motions for attorney’s fees were heard, and the Court issued its written ruling on May 5, 2015 in favor of TSP’s Sureties for a total award of $2.1 million. The Court denied adding interest onto these amounts. On June 26, 2015, payment was made by LAMTA for these amounts, which was received by TSP. On June 23, 2015, TSP’s Sureties filed a Notice of Appeal challenging the amount awarded to seek an increase.

The Company does not expect this matter to have any material effect on its consolidated financial statements.

Long Island Expressway/Cross Island Parkway Matter

The Company reconstructed the Long Island Expressway/Cross Island Parkway Interchange project for the New York State Department of Transportation (the “NYSDOT”). The $130 million project was substantially completed in January 2004 and was accepted by the NYSDOT as finally 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 that the NYSDOT is responsible.

In March 2011, the Company filed its claim and complaint with the New York State Court of Claims and served to the New York State Attorney General’s Office, seeking damages in the amount of $53.8 million. In May 2011, the 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 the NYSDOT which resulted in an amount of $0.5 million payable to the Company and formally closed out the project, which allowed the Company’s claim to be re-filed. The Company re-filed its claim in the amount of $53.8 million with the NYSDOT in February 2012 and with the Court of Claims in March 2012. In May 2012, the NYSDOT served its answer and counterclaims in the amount of $151 million alleging fraud in the inducement and punitive damages related to 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 the City’s affirmative defenses and counterclaims based on DBE fraud. The Company does not expect the counterclaims to have any material effect on its consolidated financial statements. Discovery is ongoing.

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 financial statements at that time.

Fontainebleau Matter

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

DMI and Fisk filed liens in Nevada for approximately $44 million, representing unreimbursed costs to date and lost profits, including anticipated profits. Other unaffiliated subcontractors have also filed liens. In June 2009, DMI filed suit against Turnberry West Construction, Inc. (“Turnberry”), the general contractor, in the 8th 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, and this transaction closed in February 2010. As a result of a July 2010 ruling relating to certain priming liens, there was approximately $125 million set aside from this sale, which is available for distribution to satisfy the creditor claims based on seniority. At that time, the total estimated sustainable lien amount was approximately $350 million. The project lender filed suit against the mechanic’s lien claimants, including DMI and Fisk, alleging that certain mechanic’s liens are invalid and that all mechanic’s liens are subordinate to the lender’s claims against the property. The Nevada Supreme Court ruled in October 2012 in an advisory opinion at the request of the Bankruptcy Court that lien priorities would be determined in favor of the mechanic lien holders under Nevada law.

In October 2013, a settlement was reached by and among the Statutory Lienholders and the other interested parties. The agreed upon settlement has not had an impact on the Company’s recorded accounting position as of the period ended June 30, 2015. The execution of that settlement agreement continues under the supervision of a mediator appointed by the Bankruptcy Court. 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 financial statements at that time.

Honeywell Street/Queens Boulevard Bridges Matter

In 1999, the Company was awarded a contract for reconstruction of the Honeywell Street/Queens Boulevard Bridges project for the City of New York (the “City”). In June 2003, after substantial completion of the project, the Company initiated an action to recover $8.8 million in claims against the City on behalf of itself and its subcontractors. In March 2010, the City filed counterclaims for $74.6 million and other relief, alleging fraud in connection with the DBE requirements for the project. In May 2010, the Company served the City with its response to the City’s counterclaims and affirmative defenses. In August 2013, the Court granted TPC’s motion to dismiss the City’s affirmative defenses and counterclaims relating to fraud. In September 2013, the City filed a Notice of Appeal to the Court’s decision; said appeal was dismissed by the Appellate Court in November 2014.  The Note of Issue is due to be filed on August 11, 2015, at which point the case is expected to be scheduled for trial. Discovery is ongoing.

The Company does not expect this matter to have any material effect on its consolidated financial statements.

Westgate Planet Hollywood Matter

Tutor-Saliba Corporation (“TSC”), a wholly owned subsidiary of the Company, contracted to construct a time share development project in Las Vegas which was substantially completed in December 2009. The Company’s claims against the owner, Westgate Planet Hollywood Las Vegas, LLC (“WPH”), relate to unresolved owner change orders and other claims. The Company filed a lien on the project in the amount of $23.2 million, and filed its complaint with the District Court, Clark County, Nevada. Several subcontractors have also recorded liens, some of which have been released by bonds and some of which have been released as a result of subsequent payment. WPH has posted a mechanic’s lien release bond for $22.3 million.

WPH filed a cross-complaint alleging non-conforming and defective work for approximately $51 million, primarily related to alleged defects, misallocated costs, and liquidated damages. WPH revised the amount of their counterclaims to approximately $45 million.

Following multiple post-trial motions, final judgment was entered in this matter on March 20, 2014. TSC was awarded total judgment in the amount of $19.7 million on its breach of contract claim, which includes an award of interest up through the date of judgment, plus attorney’s fees and costs. WPH has paid $0.6 million of that judgment. WPH was awarded total judgment in the amount of $3.1 million on its construction defect claims, which includes interest up through the date of judgment. The awards are not offsetting. WPH and its Sureties have filed a notice of appeal. TSC has filed a notice of appeal on the defect award. In July 2014, the Court ordered WPH to post an additional supersedeas bond on appeal, in the amount of $1.7 million, in addition to the lien release bond of $22.3 million, which increases the security up to $24.0 million. Oral argument, if any, on the appeals is anticipated to be scheduled for early 2016.

The Company does not expect this matter to have any material effect on its consolidated financial statements. 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 financial statements at that time.

Brightwater Matter

In 2006, the Department of Natural Resources and Parks Wastewater Treatment Division of King County (“King County”), as Owner, and Vinci Construction Grands Projects/Parsons RCI/Frontier-Kemper, Joint Venture (“VPFK”), as Contractor, entered into a contract to construct the Brightwater Conveyance System and tunnel sections in Washington State. Frontier-Kemper, a wholly owned subsidiary of the Company, is a 20% minority partner in the joint venture.

In April 2010, King County filed a lawsuit alleging damages in the amount of $74 million, plus costs, for VPFK’s failure to complete specified components of the project in the King County Superior Court, State of Washington. Shortly thereafter, VPFK filed a counterclaim in the amount of approximately $75 million, seeking reimbursement for additional costs incurred as a result of differing site conditions, King County’s defective specifications, and for damages sustained on VPFK’s tunnel boring machines (“TBM”), and increased costs as a result of hyperbaric interventions. VPFK’s claims were presented to a Dispute Resolution Board (“DRB”) who generally found that King County was liable to VPFK for VPFK’s claims for encountering differing site conditions, including damages to the TBM, but not on claims related to defective design specifications. From June through August 2012, each party filed several motions for summary judgment on certain claims and requests in preparation for trial, which were heard and ruled upon by the Court. The Court granted and denied various requests of each party related to evidence and damages.

In December 2012, a jury verdict was received in favor of King County in the amount of $155.8 million and a verdict in favor of VPFK in the amount of $26.3 million. In late April 2013, the Court ruled on post-trial motions and ordered VPFK’s sureties to pay King County’s attorneys’ fees and costs in the amount of $14.7 million. All other motions were denied. On May 7, 2013, VPFK paid the full verdict amount and the associated fees, thus terminating any interest on the judgment. VPFK’s notice of appeal was filed on May 31, 2013. King County has appealed approximately $17.0 million of the verdict award in VPFK’s favor and VPFK’s sureties have appealed the Court’s order granting King County’s request for legal fees and costs. Oral argument was held on March 9, 2015 and a decision is expected within three to six months.

The ultimate financial impact of King County’s lawsuit is not yet specifically determinable. In the fourth quarter of 2012, management developed a range of possible outcomes and has recorded a charge to income and a contingent liability of $5.0 million in accrued expenses. In developing a range of possible outcomes, management considered the jury verdict, continued litigation and potential settlement strategies. Management determined that there was no estimate within the range of possible outcomes that was more probable than the other and recorded a liability at the low end of the range. As of June 30, 2015, there were no changes in facts or circumstances that led management to believe that there were any changes to the probability of outcomes. The amount of payments in excess of the established contingent liability is recorded in Accounts Receivable on the Company’s Consolidated Condensed Balance Sheet as of June 30, 2015. Estimating and recording future outcomes of litigation proceedings require significant judgment and assumptions about the future, which are inherently subject to risks and uncertainties. If a final recovery turns out to be materially less favorable than our estimates, this may have a significant impact on the Company’s financial results. 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 financial statements at that time.

156 Stations Matter

In December 2003, Five Star Electric Corporation (“FSE”), a wholly owned subsidiary of the Company, entered into an agreement with the Prime Contractor Transit Technologies, L.L.C (“Transit”), a Consortium member of Siemens Transportation Transit Technologies, L.L.C (“Siemens”), to assist in the installation of new public address and customer information screens system for each of the 156 stations for the New York City Transit Authority (“NYCTA”) as the owner.

In June 2012, an arbitration panel awarded FSE a total of approximately $11.9 million. Subsequently, the Court affirmed FSE’s position, however, decided that only $8.5 million of the total arbitration award of $11.9 million can be recovered against the payment bond. In December 2014, FSE filed its reply for the motion for re-argument with regard to the reduction in recoverable costs against the payment bond.

This matter was fully settled in April 2015 and payment was received. The settlement amount was consistent with the Company’s recorded position and, accordingly, the settlement did not have a material impact on the Company’s consolidated financial statements.

U.S. Department of Commerce, National Oceanic and Atmospheric Administration Matter

Rudolph and Sletten, Inc. (“R&S”), a wholly owned subsidiary of the Company, entered into a contract with the United States Department of Commerce, National Oceanic and Atmospheric Administration (“NOAA” or “Owner”) for the construction of a 287,000 square-foot facility for NOAA’s Southwest Fisheries Science Center Replacement Headquarters and Laboratory in La Jolla, California. The contract work began on May 24, 2010, and was substantially completed in September 2012. R&S incurred significant additional costs as a result of a design that contained errors and omissions, NOAA’s unwillingness to correct design flaws in a timely fashion and a refusal to negotiate the time and pricing associated with change order work.

R&S has filed three certified claims against NOAA for contract adjustments related to the unresolved Owner change orders, delays, design deficiencies and other claims. The First Certified Claim was submitted on August 20, 2013, in the amount of $26.8 million ("First Certified Claim") and the Second Certified Claim was submitted on October 30, 2013, in the amount of $2.6 million ("Second Certified Claim") and the Third Certified Claim was submitted on October 1, 2014 in the amount of $0.7 million (“Third Certified Claim”).  

NOAA requested an extension to issue a decision on the First Certified Claim and on the Third Certified Claim, but did not request an extension of time to review the Second Certified Claim. On January 6, 2014, R&S filed suit in the United States Federal Court of Claims on the Second Certified Claim plus interest and attorney's fees and costs. This was followed by a submission of a law suit on the First Certified Claim on July 31, 2014. In February 2015 the Court denied NOAA’s motion to dismiss the Second Certified Claim. In March 2015 the Contracting Officer issued decisions on all Claims accepting a total of approximately $1.0 million of claims and denying approximately $29.5 million of claims. On April 14, 2015, the Court consolidated the cases and has commenced discovery through July 2016. No trial date has been set.

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 financial statements at that time.

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2015

Stock-Based Compensation [Abstract]

Stock-Based Compensation

(9)     Stock-Based Compensation

The Company is authorized to grant up to 8,500,000 stock-based compensation awards to key executives, employees, other key persons, including consultants, and directors of the Company under the Amended and Restated Tutor Perini Corporation Long-Term Incentive Plan (the “Plan”). The Plan allows stock-based compensation awards to be granted in a variety of forms, including stock options, stock appreciation rights, restricted stock unit awards, unrestricted stock awards, deferred stock awards and dividend equivalent rights. The terms and conditions of the awards granted are established by the Compensation Committee of the Company’s Board of Directors who also administers the Plan.

The Company intends to settle stock awards in shares upon vesting to the extent that the Company has shares available under the Plan. A total of 46,768 shares of common stock remain available for future grant under the Plan at June 30, 2015.

Restricted Stock Unit Awards

Restricted stock unit awards generally vest subject to the satisfaction of service requirements or the satisfaction of both service requirements and achievement of certain performance targets. Upon vesting, each restricted stock unit award is exchanged for one share of the Company’s common stock. The grant date fair values of these awards are determined based on the closing price of the Company’s stock on either the award date (if subject only to service conditions), or the date that the Compensation Committee establishes the applicable performance target (if subject to performance conditions). The related compensation expense is amortized over the applicable requisite service period. As of June 30, 2015, the Compensation Committee has approved the grant of an aggregate of 6,276,430 restricted stock unit awards under the 2004 Stock Option and Incentive Plan (and amendments) to eligible participants.

During thesix months endedJune 30, 2015, the Compensation Committee established the 2015 performance targets for 321,500 restricted stock units awarded in 2015, 2013, and 2012. The restricted stock unit awards granted during the first half of 2015 had a weighted average grant date fair value of $23.07. The grant date fair value is determined based on the closing price of the Company’s common stock on the date of the grant.

During the six months endedJune 30, 2014, the Compensation Committee established the 2014 performance targets for 866,500 restricted stock units awarded in 2014, 2013, and 2012. The restricted stock unit awards granted during the first half of 2014 had a weighted average grant date fair value of $27.33. The grant date fair value is determined based on the closing price of the Company’s common stock on the date of the grant.

1,560 restricted stock unit awards were forfeited during thesix months endedJune 30, 2015.

During the three and six months endedJune 30, 2015, the Company recognized $3.0 million and $8.6 million, respectively, of compensation expense related to restricted stock unit awards, as compared to $3.2 million and $7.0 million during the three and six months endedJune 30, 2014. Such expense is included in general and administrative expenses in the Consolidated Condensed Statements of Operations. As of June 30, 2015, there was $15.8 million of unrecognized compensation cost related to the unvested awards which, absent significant forfeitures in the future, is expected to be recognized over a weighted average period of approximately 1.6 years.

A summary of restricted stock unit awards activity for the six months endedJune 30, 2015 is as follows:

				Aggregate
		Weighted Average		Intrinsic
	Number	Grant Date		Value
	of Shares	Fair Value		(in thousands)
Granted and Unvested - January 1, 2015	1,056,597	$	26.54	$	25,432
Activity during the six months ended June 30, 2015:
Vested	(365,940)	$	27.18	$	7,896
Granted	321,500	$	23.07	$	6,938
Forfeited	(1,560)	$	28.59	$	—
Total Granted and Unvested - June 30, 2015	1,010,597	$	26.70	$	21,809
Approved for grant	709,500	$	(a)	$	15,311
Total Awarded and Unvested - June 30, 2015	1,720,097	$	n.a.	$	37,120

(a) Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.

The outstanding unvested awards at June 30, 2015 are scheduled to vest as follows, subject where applicable to the achievement of performance targets. As described above, certain performance targets are not yet established.

	Number
Vesting Date	of Awards
2015	5,000
2016	302,500
2017	957,597
2018	296,000
2019	159,000
	1,720,097

35,000 of the unvested restricted stock unit awards will vest based on the satisfaction of service requirements and 1,685,097 of the unvested restricted stock unit awards will vest based on the satisfaction of both service requirements and the achievement of performance targets.

Stock Options

Stock option awards generally vest subject to the satisfaction of service requirements or the satisfaction of both service requirements and achievement of certain performance targets. The grant date fair values of these awards are determined based on the Black-Scholes option price model on either the award date (if subject only to service conditions) or the date that the Compensation Committee establishes the applicable performance target (if subject to performance conditions). The related compensation expense is amortized over the applicable requisite service period. The exercise price of the options is equal to the closing price of the Company’s common stock on the date the awards were approved by the Compensation Committee, and the awards expire ten years from the award date. As of June 30, 2015, the Compensation Committee has approved the award of an aggregate of 3,385,465 stock options to eligible participants.

During the six months endedJune 30, 2015, the Compensation Committee established certain performance targets for 259,000 stock options awarded in 2015, 2014, 2013, and 2012. The stock option awards granted during the first half of 2015 had a weighted average grant date fair value of $12.48.

During the six months endedJune 30, 2014, the Compensation Committee established certain performance targets for 714,000 stock options awarded in 2014, 2013 and 2012. The stock option awards granted during the first half of 2014 had a weighted average grant date fair value of$17.69.  

For the three and six months endedJune 30, 2015, the Company recognized compensation expense related to stock option awards of $1.1 million and $4.7 million, respectively, as compared to $1.3 million and $2.9 million for the three and six months endedJune 30, 2014, respectively. Such expenses are included in general and administrative expenses in the Consolidated Statements of Operations. As of June 30, 2015, there was $5.1 million of unrecognized compensation expense related to the outstanding options, which, absent significant forfeitures in the future, is expected to be recognized over a weighted average period of approximately 1.2 years.

A summary of stock option activity for the six months endedJune 30, 2015 is as follows:

		Weighted Average
	Number	Grant Date		Exercise
	of Shares	Fair Value		Price
Granted and Outstanding - January 1, 2015	1,989,000	$	12.75	$	19.63
Activity during the six months ended June 30, 2015:
Granted	259,000	$	12.48	$	16.07
Exercised	—	$	—	$	—
Forfeited	—	$	—	$	—
Total Granted and Outstanding - June 30, 2015	2,248,000	$	11.93	$	19.22
Approved for grant	677,000	$	(a)	$	20.82
Total Awarded and Outstanding - June 30, 2015	2,925,000	$	n/a	$	19.59

(a) Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.

There were 1,485,000 stock options that have vested and were exercisable at June 30, 2015 at a weighted average exercise price of $19.57 per share.

Of the remaining stock options outstanding, approximately 15,000 stock options will vest based on the satisfaction of service requirements and 1,425,000 stock options will vest based on the satisfaction of both service requirements and the achievement of performance targets.

At June 30, 2015, the outstanding stock options of 2,248,000 had an intrinsic value of $8.4 million and a weighted average remaining contractual life of 5.7 years.

No stock options were granted during the second quarter of 2015. The following table details the key assumptions used in estimating the grant date fair values of stock option awards granted during the first quarter of 2015 based on the Black Scholes option pricing model using the following key assumptions:

Awarded during		2015			2013			2012
Number of options		100,000			9,000			150,000
Risk-free interest rate		1.46	%		1.77	%		1.15	%
Expected life of options (years)		5.50			5.68			4.06
Expected volatility of underlying stock		45.11	%		43.92	%		45.92	%
Expected quarterly dividends (per share)	$	—		$	—		$	—

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Costs and estimated earnings in excess of billings (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Costs and estimated earnings in excess of billings [Abstract]
Unbilled costs and profits incurred to date	[1]	$ 248,561	$ 253,078
Unapproved change orders		274,134	161,375
Claims		293,785	311,949
Costs and estimated earnings in excess of billings		816,480	726,402
Unapproved change orders and claims subject to pending litigation		$ 41,300	$ 38,400

[1] Represents the excess of contract costs and profits recognized to date on the percentage of completion accounting method over the amount of contract billings to date on certain contracts.

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Business Segments (Reportable Segments) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reportable segment information
Revenues		$ 1,312,438	$ 1,084,510	$ 2,378,903	$ 2,039,743
Income from construction operations:
Income from construction operations		30,881	65,443	50,965	106,940
Elimination Of Intersegment Revenues [Member]
Reportable segment information
Revenues		(59,967)	(25,925)	(95,458)	(50,544)
Operating segment [Member]
Reportable segment information
Revenues		1,372,405	1,110,435	2,474,361	2,090,287
Reportable Segments [Member]
Reportable segment information
Revenues		1,312,438	1,084,510	2,378,903	2,039,743
Income from construction operations:
Income from construction operations		47,480	78,309	86,320	132,294
Reportable Segments [Member] | Elimination Of Intersegment Revenues [Member]
Reportable segment information
Revenues		(59,967)	(25,925)	(95,458)	(50,544)
Reportable Segments [Member] | Operating segment [Member]
Reportable segment information
Revenues		1,372,405	1,110,435	2,474,361	2,090,287
Civil [Member]
Reportable segment information
Revenues		534,180	390,539	908,854	755,695
Income from construction operations:
Income from construction operations		46,329	58,002	76,923	102,347
Civil [Member] | Elimination Of Intersegment Revenues [Member]
Reportable segment information
Revenues		(39,180)	(7,584)	(57,382)	(18,820)
Civil [Member] | Operating segment [Member]
Reportable segment information
Revenues		573,360	398,123	966,236	774,515
Building [Member]
Reportable segment information
Revenues		451,404	372,012	850,233	669,944
Income from construction operations:
Income from construction operations		(12,592)	7,674	(14,870)	9,497
Building [Member] | Elimination Of Intersegment Revenues [Member]
Reportable segment information
Revenues		(20,843)	(18,341)	(38,076)	(31,724)
Building [Member] | Operating segment [Member]
Reportable segment information
Revenues		472,247	390,353	888,309	701,668
Specialty Contractors [Member]
Reportable segment information
Revenues		326,854	321,959	619,816	614,104
Income from construction operations:
Income from construction operations		13,743	12,633	24,267	20,450
Specialty Contractors [Member] | Elimination Of Intersegment Revenues [Member]
Reportable segment information
Revenues		56
Specialty Contractors [Member] | Operating segment [Member]
Reportable segment information
Revenues		326,798	321,959	619,816	614,104
Corporate [Member]
Income from construction operations:
Income from construction operations	[1]	$ (16,599)	$ (12,866)	$ (35,355)	$ (25,354)

[1] Consists primarily of corporate general and administrative expenses.

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Related Party Transactions

6 Months Ended

Jun. 30, 2015

Related Party Transactions [Abstract]

Related Party Transactions

(14)     Related Party Transactions

The Company leases certain facilities from Ronald N. Tutor, the Company’s Chairman and Chief Executive Officer, and an affiliate owned by Mr. Tutor under non-cancelable operating lease agreements. On April 18, 2014, the Company and Ronald N. Tutor entered into two separate lease agreements, replacing the former leases which terminated on May 31, 2014. Each of the new leases is effective June 1, 2014 with new monthly payments of an aggregate of $0.2 million, and an increase at the rate of the greater of 3% per annum or the Consumer Price Index (“CPI”) for the Los Angeles metropolitan area beginning on June 1, 2015. Both new leases provide for purchase/sell options of the facilities at fair market value beginning on June 1, 2021 and June 1, 2025. Also under both leases, the fair market value is to be agreed upon by both parties, or determined by a consensus of independent qualified appraisers. Lease expense for these new leases and the former leases until date of termination, recorded on a straight-line basis, was $0.8 million and $1.6 million for three and six months endedJune 30, 2015, respectively. Lease expense for these new leases and the former leases until date of termination, recorded on a straight-line basis, was $0.6 million and $1.3 million for three and six months endedJune 30, 2014, respectively.

Raymond R. Oneglia, who is the Vice Chairman of O&G Industries, Inc. (“O&G”), is a director of the Company. Currently the Company has a 30% interest in a joint venture with O&G as the sponsor involving a highway construction project for the State of Connecticut, with an estimated total contract value of approximately $362 million, scheduled for completion in 2016. Under this arrangement, O&G provides project-related equipment and services directly to the customer (on customary trade terms). In accordance with the joint venture agreement, payments to O&G for equipment and services for the three and six months endedJune 30, 2015 were $3.2 million and $5.2 million, respectively. Payments to O&G for equipment and services for the three and six months endedJune 30, 2014 were $1.9 million and $3.4 million, respectively. O&G’s cumulative holdings of the Company’s stock were 500,000 shares at bothJune 30, 2015 and June 30, 2014, or 1.02% and 1.03%, respectively, of total common shares outstanding.

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Measurements [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

			Fair Value Measurements Using
						Significant
				Quoted prices		other		Significant
		Total		in active		observable		unobservable
		Carrying		markets		inputs		inputs
As of June 30, 2015		Value		(Level 1)		(Level 2)		(Level 3)
	(in thousands)
Assets:
Cash and cash equivalents (a)	$	106,917	$	106,917	$	—	$	—
Restricted cash (a)		39,493		39,493		—		—
Investments in lieu of retainage (b)		36,482		26,579		9,903		—
Total	$	182,892	$	172,989	$	9,903	$	—
Liabilities:
Interest rate swap contract (c)	$	208	$	—	$	208	$	—
Contingent consideration (d)		26,334		—		—		26,334
	$	26,542	$	—	$	208	$	26,334

			Fair Value Measurements Using
						Significant
				Quoted prices		other		Significant
		Total		in active		observable		unobservable
		Carrying		markets		inputs		inputs
As of December 31, 2014		Value		(Level 1)		(Level 2)		(Level 3)
	(in thousands)
Assets:
Cash and cash equivalents (a)	$	135,583	$	135,583	$	—	$	—
Restricted cash (a)		44,370		44,370		—		—
Investments in lieu of retainage (b)		33,224		25,761		7,463		—
Total	$	213,177	$	205,714	$	7,463	$	—
Liabilities:
Interest rate swap contract (c)	$	381	$	—	$	381	$	—
Contingent consideration (d)		24,814		—		—		24,814
	$	25,195	$	—	$	381	$	24,814

(a) Cash, cash equivalents and restricted cash consist primarily of money market funds with original maturity dates of three months or less, for which fair value is determined through quoted market prices.

(b) Investments in lieu of retainage are classified as account receivables, including retainage and are comprised primarily of money market funds for which fair value is determined through quoted market prices. Investment in lieu of retainage also includes U.S. Treasury Notes and other municipal bonds for which fair value is determined through quoted market prices and other similar high quality investments whose values are determined from readily-available pricing sources for comparable instruments.

(c) As discussed in Note 10 — Financial Commitments, the Company entered into a swap agreement with Bank of America, N.A. to establish a long-term interest rate for its former $200 million five-year term loan. The swap agreement became effective for the term loan principal balance outstanding at January 31, 2012. This term loan was paid off and the then current amount refinanced on June 5, 2014, providing for a $250 million term loan maturing on June 5, 2019. The interest rate swap continues on its original basis for the initial term and amount and finalizes on June 30, 2016. Bank of America calculates the fair market value of the interest rate swap liability by utilizing a mark-to-market valuation model that is based on current observable interest rates, expected future interest rates and the Company’s credit risk. The Company reviews the mark-to-market valuation when determining the fair value of the interest rate swap liability to be recognized. This liability is classified as a component of other long-term liabilities.

(d) The liabilities listed as of June 30, 2015 and December 31, 2014 above represent the contingent consideration for the Company’s acquisitions in 2011 for which the measurement periods for purchase price analyses for the acquisitions have concluded.

Changes in Level 3 Liabilities Measured at Fair Value on a Recurring Basis

	Contingent
	Consideration
	(in thousands)
Balance at December 31, 2014	$	24,814
Fair value adjustments included in other income (expense), net		746
Contingent consideration settled		—
Balance at March 31, 2015	$	25,560
Fair value adjustments included in other income (expense), net		774
Contingent consideration settled		—
Balance at June 30, 2015	$	26,334

	Contingent
	Consideration
	(in thousands)
Balance at December 31, 2013	$	46,022
Fair value adjustments included in other income (expense), net		3,404
Contingent consideration settled		(1,031)
Balance at March 31, 2014	$	48,395
Fair value adjustments included in other income (expense), net		2,162
Contingent consideration settled		(229)
Balance at June 30, 2014	$	50,328

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Financial Commitments (Details)	6 Months Ended
	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jun. 05, 2014 USD ($)
Term Loan [Member]
Amended Credit Agreement
Issuance date	Jun. 05, 2014
Face amount	$ 250,000,000		$ 200,000,000
Principal payable in year 1 (as a percent)	6.00%
Principal payable in year 2 (as a percent)	9.00%
Principal payable in year 3 (as a percent)	12.00%
Principal payable in year 4 (as a percent)	15.00%
Principal payable in year 5 (as a percent)	13.50%
Balloon payment at maturity (as a percent)	44.50%
Maturity date	Jun. 05, 2019
Loan outstanding	$ 235,000,000
Revolving Credit Facility [Member]
Amended Credit Agreement
Maximum borrowing capacity	300,000,000		300,000,000
Outstanding borrowings	185,000,000	$ 130,000,000
Available borrowing capacity	114,800,000
Letters Of Credit [Member]
Amended Credit Agreement
Sublimit for the issuance of letters of credit	150,000,000
Letters of credit outstanding	$ 200,000	$ 1,000,000
Revolving Credit Facility And Term Loan [Member]
Amended Credit Agreement
Issuance date	Jun. 05, 2014
Maturity date	Jun. 05, 2019
Covenants duration for maximum allowable consolidated leverage ratio	5 years
Minimum fixed charge ratio	1.25
Revolving Credit Facility And Term Loan [Member] | Minimum [Member[
Amended Credit Agreement
Maximum allowable consolidated leverage ratio	2.75
Revolving Credit Facility And Term Loan [Member] | Maximum [Member]
Amended Credit Agreement
Face amount			$ 300,000,000
Maximum allowable consolidated leverage ratio	3.75

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Goodwill and Intangible Assets (Schedule of Estimated Amortization Expense of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Amortization expense
2015 (six months remaining)	$ 1.8		$ 1.8
2016	3.5		3.5
2017	3.5		3.5
2018	3.5		3.5
2019	3.5		3.5
Thereafter	32.2		32.2
Carrying Value	48.0		48.0
Amortization expense	$ 1.0	$ 3.7	$ 1.9	$ 7.3

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CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME
NET INCOME	$ 11,777	$ 28,545	$ 16,903	$ 44,484
OTHER COMPREHENSIVE INCOME (LOSS):
Foreign currency translation	(1,877)	590	(2,841)	100
Change in fair value of investments	(122)	99	(138)	287
Change in fair value of interest rate swap	99	120	173	258
Other comprehensive income before taxes	(1,900)	809	(2,806)	645
INCOME TAX EXPENSE (BENEFIT):
Foreign currency translation	(731)	243	(1,107)	39
Change in fair value of investments	(48)	106	(54)	113
Change in fair value of interest rate swap	39	44	68	101
Income tax expense	(740)	393	(1,093)	253
NET OTHER COMPREHENSIVE INCOME (LOSS)	(1,160)	416	(1,713)	392
TOTAL COMPREHENSIVE INCOME	$ 10,617	$ 28,961	$ 15,190	$ 44,876

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Cash and Cash Equivalents and Restricted Cash

6 Months Ended

Jun. 30, 2015

Cash and Cash Equivalents and Restricted Cash [Abstract]

Cash and Cash Equivalents and Restricted Cash

(3)     Cash and Cash Equivalents and Restricted Cash

Cash and cash equivalents include short-term, highly liquid investments with original maturities of three months or less when acquired.

Cash and cash equivalents, as reported in the accompanying Consolidated Condensed Balance Sheets, consist of amounts held by the Company that are available for general corporate purposes and the Company’s proportionate share of amounts held by construction joint ventures that are available only for joint venture-related uses, including future distributions to joint venture partners. Restricted cash is primarily held to secure insurance-related contingent obligations, such as insurance claim deductibles, in lieu of letters of credit.

Cash and cash equivalents and restricted cash consisted of the following:

	June 30,		December 31,
	2015		2014
	(in thousands)
Corporate cash and cash equivalents (available for general corporate purposes)	$	48,394	$	40,846
Company's share of joint venture cash and cash equivalents (available only for joint venture purposes, including future distributions)		58,523		94,737
Total Cash and Cash Equivalents	$	106,917	$	135,583
Restricted Cash	$	39,493	$	44,370

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Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets [Abstract]

Schedule of Carrying Amount of Goodwill

					Specialty
	Civil		Building		Contractors		Total
	(in thousands)
Gross Goodwill Balance	$	492,074	$	424,724	$	156,193	$	1,072,991
Accumulated Impairment		(76,716)		(411,269)		—		(487,985)
Balance at December 31, 2014	$	415,358	$	13,455	$	156,193	$	585,006
Current activity		—		—		—		—
Balance at June 30, 2015	$	415,358	$	13,455	$	156,193	$	585,006

Intangible Assets

	June 30, 2015								Weighted
					Accumulated				Average
			Accumulated		Impairment		Carrying		Amortization
	Cost		Amortization		Charge		Value		Period
	(in thousands)
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)		74,350		(10,073)		(23,232)		41,045	20 years
Contractor license		6,000		—		(6,000)		—	Indefinite
Customer relationships		39,800		(16,242)		(16,645)		6,913	11.4 years
Construction contract backlog		73,706		(73,706)		—		—	N/A
Total	$	311,456	$	(100,021)	$	(113,067)	$	98,368

		December 31, 2014							Weighted
					Accumulated				Average
			Accumulated		Impairment		Carrying		Amortization
		Cost	Amortization		Charge		Value		Period
	(in thousands)
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)		74,350		(8,829)		(23,232)		42,289	20 years
Contractor license		6,000		—		(6,000)		—	Indefinite
Customer relationships		39,800		(15,600)		(16,645)		7,555	11.4 years
Construction contract backlog		73,706		(73,706)		—		—	3.6 years
Total	$	311,456	$	(98,135)	$	(113,067)	$	100,254

Schedule of Estimated Amortization Expense of Intangible Assets

Fiscal Year		(in millions
2015 (six months remaining)	$	1.8
2016		3.5
2017		3.5
2018		3.5
2019		3.5
Thereafter		32.2
Total	$	48.0

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Goodwill and Intangible Assets (Schedule of Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Goodwill
Gross Goodwill Balance		$ 1,072,991
Accumulated Impairment		(487,985)
Goodwill	$ 585,006	585,006
Civil [Member]
Goodwill
Gross Goodwill Balance		492,074
Accumulated Impairment		(76,716)
Goodwill	415,358	415,358
Building [Member]
Goodwill
Gross Goodwill Balance		424,724
Accumulated Impairment		(411,269)
Goodwill	13,455	13,455
Specialty Contractors [Member]
Goodwill
Gross Goodwill Balance		156,193
Goodwill	$ 156,193	$ 156,193

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Employee Pension Plans

6 Months Ended

Jun. 30, 2015

Employee Pension Plans [Abstract]

Employee Pension Plans

(13)     Employee Pension Plans

The Company has a defined benefit pension plan and an unfunded supplemental retirement plan. Effective September 1, 2004, all benefit accruals under the Company’s pension plan 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 the net periodic benefit cost by component for the three and six months endedJune 30, 2015 and 2014:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(in thousands)				(in thousands)
Interest cost	$	1,011	$	1,030	$	2,022	$	2,060
Expected return on plan assets		(1,256)		(1,192)		(2,512)		(2,384)
Amortization of net loss		1,460		1,077		2,920		2,154
Net periodic benefit cost	$	1,215	$	915	$	2,430	$	1,830

The Company contributed $1.4 million and $1.5 million to its defined benefit pension plan during the six months endedJune 30, 2015 and 2014, respectively. The Company expects to contribute an additional $1.3 million to its defined benefit pension plan during the remainder of fiscal year 2015.