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Separate Financial Information of Subsidiary Guarantors of Indebtedness (Condensed Consolidating Statement of Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS |  |  |  |  |  |  |  |  |  |  |
REVENUE | $ 1,246,599 | $ 1,332,978 | $ 1,308,130 | $ 1,085,369 | $ 1,200,830 | $ 1,340,739 | $ 1,312,438 | $ 1,066,465 | $ 4,973,076 | $ 4,920,472 | $ 4,492,309
COST OF OPERATIONS |  |  |  |  |  |  |  |  | (4,515,886) | (4,564,219) | (3,986,867)
GROSS PROFIT | 117,660 | 124,668 | 109,770 | 105,092 | 66,673 | 100,201 | 98,620 | 90,759 | 457,190 | 356,253 | 505,442
General and administrative expenses |  |  |  |  |  |  |  |  | (255,270) | (250,840) | (263,752)
INCOME FROM CONSTRUCTION OPERATIONS | 52,050 | 60,919 | 48,829 | 40,122 | 15,474 | 38,974 | 30,881 | 20,084 | 201,920 | 105,413 | 241,690
Other income (expense), net |  |  |  |  |  |  |  |  | 6,977 | 13,569 | (8,217)
Interest expense |  |  |  |  |  |  |  |  | (59,782) | (45,143) | (46,035)
INCOME BEFORE INCOME TAXES | 38,685 | 47,926 | 35,780 | 26,724 | 11,687 | 33,955 | 19,992 | 8,205 | 149,115 | 73,839 | 187,438
Provision for Income Taxes |  |  |  |  |  |  |  |  | (53,293) | (28,547) | (79,502)
NET INCOME | $ 30,260 | $ 28,801 | $ 21,361 | $ 15,400 | $ 8,712 | $ 19,677 | $ 11,777 | $ 5,126 | 95,822 | 45,292 | 107,936
Other Comprehensive Income: |  |  |  |  |  |  |  |  |  |  |
Change in pension benefit plans assets/liabilities |  |  |  |  |  |  |  |  | (2,623) | 2,026 | (8,155)
Foreign currency translation |  |  |  |  |  |  |  |  | (261) | (3,214) | (638)
Change in fair value of investments |  |  |  |  |  |  |  |  | (340) | 766 | 205
Change in fair value of interest rate swap |  |  |  |  |  |  |  |  | (24) | (125) | 349
Total other comprehensive loss, net of tax |  |  |  |  |  |  |  |  | (3,248) | (547) | (8,239)
TOTAL COMPREHENSIVE INCOME |  |  |  |  |  |  |  |  | 92,574 | 44,745 | 99,697
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS |  |  |  |  |  |  |  |  |  |  |
REVENUE |  |  |  |  |  |  |  |  | (337,427) | (262,527) | (156,776)
COST OF OPERATIONS |  |  |  |  |  |  |  |  | 337,427 | 262,527 | 156,776
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  | (113,369) | (23,367) | (95,501)
Other income (expense), net |  |  |  |  |  |  |  |  | (1,211) |  |
Interest expense |  |  |  |  |  |  |  |  | 1,211 |  |
INCOME BEFORE INCOME TAXES |  |  |  |  |  |  |  |  | (113,369) | (23,367) | (95,501)
NET INCOME |  |  |  |  |  |  |  |  | (113,369) | (23,367) | (95,501)
Other Comprehensive Income: |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income of subsidiaries |  |  |  |  |  |  |  |  | 601 | 2,448 | 433
Total other comprehensive loss, net of tax |  |  |  |  |  |  |  |  | 601 | 2,448 | 433
TOTAL COMPREHENSIVE INCOME |  |  |  |  |  |  |  |  | (112,768) | (20,919) | (95,068)
Tutor Perini Corporation [Member] |  |  |  |  |  |  |  |  |  |  |
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS |  |  |  |  |  |  |  |  |  |  |
REVENUE |  |  |  |  |  |  |  |  | 977,298 | 1,064,723 | 959,010
COST OF OPERATIONS |  |  |  |  |  |  |  |  | (861,695) | (918,322) | (808,285)
GROSS PROFIT |  |  |  |  |  |  |  |  | 115,603 | 146,401 | 150,725
General and administrative expenses |  |  |  |  |  |  |  |  | (85,014) | (77,806) | (80,151)
INCOME FROM CONSTRUCTION OPERATIONS |  |  |  |  |  |  |  |  | 30,589 | 68,595 | 70,574
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  | 113,369 | 23,367 | 95,501
Other income (expense), net |  |  |  |  |  |  |  |  | 892 | 9,271 | (7,003)
Interest expense |  |  |  |  |  |  |  |  | (58,787) | (42,123) | (41,977)
INCOME BEFORE INCOME TAXES |  |  |  |  |  |  |  |  | 86,063 | 59,110 | 117,095
Provision for Income Taxes |  |  |  |  |  |  |  |  | 9,759 | (13,818) | (9,159)
NET INCOME |  |  |  |  |  |  |  |  | 95,822 | 45,292 | 107,936
Other Comprehensive Income: |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income of subsidiaries |  |  |  |  |  |  |  |  | (601) | (2,448) | (433)
Change in pension benefit plans assets/liabilities |  |  |  |  |  |  |  |  | (2,623) | 2,026 | (8,155)
Change in fair value of interest rate swap |  |  |  |  |  |  |  |  | (24) | (125) | 349
Total other comprehensive loss, net of tax |  |  |  |  |  |  |  |  | (3,248) | (547) | (8,239)
TOTAL COMPREHENSIVE INCOME |  |  |  |  |  |  |  |  | 92,574 | 44,745 | 99,697
Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS |  |  |  |  |  |  |  |  |  |  |
REVENUE |  |  |  |  |  |  |  |  | 4,316,658 | 4,104,871 | 3,690,075
COST OF OPERATIONS |  |  |  |  |  |  |  |  | (3,991,618) | (3,908,424) | (3,353,098)
GROSS PROFIT |  |  |  |  |  |  |  |  | 325,040 | 196,447 | 336,977
General and administrative expenses |  |  |  |  |  |  |  |  | (168,394) | (171,153) | (181,714)
INCOME FROM CONSTRUCTION OPERATIONS |  |  |  |  |  |  |  |  | 156,646 | 25,294 | 155,263
Other income (expense), net |  |  |  |  |  |  |  |  | 6,294 | 3,745 | (1,705)
Interest expense |  |  |  |  |  |  |  |  | (2,206) | (3,020) | (4,058)
INCOME BEFORE INCOME TAXES |  |  |  |  |  |  |  |  | 160,734 | 26,019 | 149,500
Provision for Income Taxes |  |  |  |  |  |  |  |  | (57,446) | (10,060) | (63,411)
NET INCOME |  |  |  |  |  |  |  |  | 103,288 | 15,959 | 86,089
Other Comprehensive Income: |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation |  |  |  |  |  |  |  |  | (261) | (3,214) | (638)
Change in fair value of investments |  |  |  |  |  |  |  |  | (340) | 766 | 205
Total other comprehensive loss, net of tax |  |  |  |  |  |  |  |  | (601) | (2,448) | (433)
TOTAL COMPREHENSIVE INCOME |  |  |  |  |  |  |  |  | 102,687 | 13,511 | 85,656
Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS |  |  |  |  |  |  |  |  |  |  |
REVENUE |  |  |  |  |  |  |  |  | 16,547 | 13,405 |
COST OF OPERATIONS |  |  |  |  |  |  |  |  |  |  | 17,740
GROSS PROFIT |  |  |  |  |  |  |  |  | 16,547 | 13,405 | 17,740
General and administrative expenses |  |  |  |  |  |  |  |  | (1,862) | (1,881) | (1,887)
INCOME FROM CONSTRUCTION OPERATIONS |  |  |  |  |  |  |  |  | 14,685 | 11,524 | 15,853
Other income (expense), net |  |  |  |  |  |  |  |  | 1,002 | 553 | 491
INCOME BEFORE INCOME TAXES |  |  |  |  |  |  |  |  | 15,687 | 12,077 | 16,344
Provision for Income Taxes |  |  |  |  |  |  |  |  | (5,606) | (4,669) | (6,932)
NET INCOME |  |  |  |  |  |  |  |  | 10,081 | 7,408 | 9,412
Other Comprehensive Income: |  |  |  |  |  |  |  |  |  |  |
TOTAL COMPREHENSIVE INCOME |  |  |  |  |  |  |  |  | $ 10,081 | $ 7,408 | $ 9,412

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