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Separate Financial Information of Subsidiary Guarantors of Indebtedness (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016 | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | --- | --- | ---
ASSETS |  |  |  |
Cash and Cash Equivalents | $ 104,817 | $ 146,103 | $ 90,582 | $ 75,452
Restricted Cash | 60,158 | 50,504 |  |
Accounts Receivable | 1,749,602 | 1,743,300 |  |
Costs and Estimated Earnings in Excess of Billings | 840,760 | 831,826 |  |
Other Current Assets | 58,482 | 66,023 |  |
Total current assets | 2,813,819 | 2,837,756 |  |
Property and Equipment, net | 462,695 | 477,626 |  |
Other Assets: |  |  |  |
GOODWILL | 585,006 | 585,006 |  |
Intangible Assets, net | 92,111 | 92,997 |  |
OTHER ASSETS | 44,852 | 45,235 |  |
TOTAL ASSETS | 3,998,483 | 4,038,620 |  |
LIABILITIES AND STOCKHOLDERS' EQUITY |  |  |  |
Current Maturities of Long-term Debt | 27,598 | 85,890 |  |
Accounts Payable | 965,931 | 994,016 |  |
Billings in Excess of Costs and Estimated Earnings | 288,795 | 331,112 |  |
Accrued Expenses and Other Current Liabilities | 112,448 | 107,925 |  |
Total current liabilities | 1,394,772 | 1,518,943 |  |
Long-term Debt, less current maturities | 753,191 | 673,629 |  |
Deferred Income Taxes | 130,616 | 131,007 |  |
Other Long-term Liabilities | 159,777 | 162,018 |  |
Contingencies and Commitments |  |  |  |
Stockholders' Equity | 1,560,127 | 1,553,023 |  |
TOTAL LIABILITIES AND STOCKHOLERS' EQUITY | 3,998,483 | 4,038,620 |  |
Eliminations [Member] |  |  |  |
ASSETS |  |  |  |
Accounts Receivable | (213,670) | (231,519) |  |
Costs and Estimated Earnings in Excess of Billings | (70,656) | (67,385) |  |
Other Current Assets | (36,118) | (56,817) |  |
Total current assets | (320,444) | (355,721) |  |
Intercompany Notes and Receivables | (167,761) | (242,382) |  |
Other Assets: |  |  |  |
Investment in Subsidiaries | (2,188,874) | (2,223,971) |  |
OTHER ASSETS | (8,467) | (8,401) |  |
TOTAL ASSETS | (2,685,546) | (2,830,475) |  |
LIABILITIES AND STOCKHOLDERS' EQUITY |  |  |  |
Current Maturities of Long-term Debt | (65,000) | (60,000) |  |
Accounts Payable | (206,077) | (226,249) |  |
Billings in Excess of Costs and Estimated Earnings | (12,590) | (20,571) |  |
Accrued Expenses and Other Current Liabilities | (36,777) | (48,901) |  |
Total current liabilities | (320,444) | (355,721) |  |
Long-term Debt, less current maturities | (6,060) | (5,994) |  |
Deferred Income Taxes | (2,407) | (2,407) |  |
Intercompany Notes and Advances Payable | (167,761) | (242,382) |  |
Contingencies and Commitments |  |  |  |
Stockholders' Equity | (2,188,874) | (2,223,971) |  |
TOTAL LIABILITIES AND STOCKHOLERS' EQUITY | (2,685,546) | (2,830,475) |  |
Tutor Perini Corporation [Member] |  |  |  |
ASSETS |  |  |  |
Cash and Cash Equivalents | 56,767 | 80,829 | 49,726 | 47,196
Restricted Cash | 2,017 | 2,016 |  |
Accounts Receivable | 435,844 | 426,176 |  |
Costs and Estimated Earnings in Excess of Billings | 145,252 | 140,901 |  |
Other Current Assets | 43,461 | 76,453 |  |
Total current assets | 683,341 | 726,375 |  |
Property and Equipment, net | 62,529 | 74,739 |  |
Other Assets: |  |  |  |
Investment in Subsidiaries | 2,188,874 | 2,223,971 |  |
OTHER ASSETS | 41,930 | 42,324 |  |
TOTAL ASSETS | 2,976,674 | 3,067,409 |  |
LIABILITIES AND STOCKHOLDERS' EQUITY |  |  |  |
Current Maturities of Long-term Debt | 68,655 | 122,166 |  |
Accounts Payable | 253,609 | 280,342 |  |
Billings in Excess of Costs and Estimated Earnings | 94,701 | 102,373 |  |
Accrued Expenses and Other Current Liabilities | 47,246 | 60,227 |  |
Total current liabilities | 464,211 | 565,108 |  |
Long-term Debt, less current maturities | 699,786 | 614,608 |  |
Deferred Income Taxes | 16,083 | 16,475 |  |
Other Long-term Liabilities | 106,621 | 111,108 |  |
Intercompany Notes and Advances Payable | 129,846 | 207,087 |  |
Contingencies and Commitments |  |  |  |
Stockholders' Equity | 1,560,127 | 1,553,023 |  |
TOTAL LIABILITIES AND STOCKHOLERS' EQUITY | 2,976,674 | 3,067,409 |  |
Guarantor Subsidiaries [Member] |  |  |  |
ASSETS |  |  |  |
Cash and Cash Equivalents | 47,765 | 65,079 | 40,151 | 26,892
Restricted Cash | 1,840 | 2,211 |  |
Accounts Receivable | 1,432,775 | 1,441,263 |  |
Costs and Estimated Earnings in Excess of Billings | 766,012 | 758,158 |  |
Other Current Assets | 44,863 | 38,889 |  |
Total current assets | 2,293,255 | 2,305,600 |  |
Property and Equipment, net | 396,571 | 399,091 |  |
Intercompany Notes and Receivables | 167,761 | 242,382 |  |
Other Assets: |  |  |  |
GOODWILL | 585,006 | 585,006 |  |
Intangible Assets, net | 92,111 | 92,997 |  |
OTHER ASSETS | 8,982 | 8,905 |  |
TOTAL ASSETS | 3,543,686 | 3,633,981 |  |
LIABILITIES AND STOCKHOLDERS' EQUITY |  |  |  |
Current Maturities of Long-term Debt | 23,943 | 23,724 |  |
Accounts Payable | 913,456 | 937,428 |  |
Billings in Excess of Costs and Estimated Earnings | 196,933 | 229,746 |  |
Accrued Expenses and Other Current Liabilities | 86,668 | 76,002 |  |
Total current liabilities | 1,221,000 | 1,266,900 |  |
Long-term Debt, less current maturities | 59,465 | 65,015 |  |
Deferred Income Taxes | 116,940 | 116,939 |  |
Other Long-term Liabilities | 2,442 | 2,415 |  |
Contingencies and Commitments |  |  |  |
Stockholders' Equity | 2,143,839 | 2,182,712 |  |
TOTAL LIABILITIES AND STOCKHOLERS' EQUITY | 3,543,686 | 3,633,981 |  |
Non-Guarantor Subsidiaries [Member] |  |  |  |
ASSETS |  |  |  |
Cash and Cash Equivalents | 285 | 195 | $ 705 | $ 1,364
Restricted Cash | 56,301 | 46,277 |  |
Accounts Receivable | 94,653 | 107,380 |  |
Costs and Estimated Earnings in Excess of Billings | 152 | 152 |  |
Other Current Assets | 6,276 | 7,498 |  |
Total current assets | 157,667 | 161,502 |  |
Property and Equipment, net | 3,595 | 3,796 |  |
Other Assets: |  |  |  |
OTHER ASSETS | 2,407 | 2,407 |  |
TOTAL ASSETS | 163,669 | 167,705 |  |
LIABILITIES AND STOCKHOLDERS' EQUITY |  |  |  |
Accounts Payable | 4,943 | 2,495 |  |
Billings in Excess of Costs and Estimated Earnings | 9,751 | 19,564 |  |
Accrued Expenses and Other Current Liabilities | 15,311 | 20,597 |  |
Total current liabilities | 30,005 | 42,656 |  |
Other Long-term Liabilities | 50,714 | 48,495 |  |
Intercompany Notes and Advances Payable | 37,915 | 35,295 |  |
Contingencies and Commitments |  |  |  |
Stockholders' Equity | 45,035 | 41,259 |  |
TOTAL LIABILITIES AND STOCKHOLERS' EQUITY | $ 163,669 | $ 167,705 |  |

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