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Business Segments (Tables) | 12 Months Ended
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Dec. 31, 2016
Business Segments [Abstract] |
Reportable Segments |
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﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ | Reportable Segments |  |  |  |  |  |
﻿ |  |  |  |  | Specialty |  | Segment |  |  |  | Consolidated
﻿(in thousands) | Civil |  | Building |  | Contractors |  | Total |  | Corporate |  | Total
﻿Year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Total revenue | $ | 1,830,857 |  | $ | 2,146,747 |  | $ | 1,234,272 |  | $ | 5,211,876 |  | $ | — |  | $ | 5,211,876
﻿Elimination of intersegment revenue |  | (161,894) |  |  | (76,906) |  |  | — |  |  | (238,800) |  |  | — |  |  | (238,800)
﻿Revenue from external customers | $ | 1,668,963 |  | $ | 2,069,841 |  | $ | 1,234,272 |  | $ | 4,973,076 |  | $ | — |  | $ | 4,973,076
﻿Income from construction operations | $ | 172,668 |  | $ | 51,564 |  | $ | 37,908 |  | $ | 262,140 |  | $ | (60,220) | (a) | $ | 201,920
﻿Capital expenditures | $ | 13,541 |  | $ | 516 |  | $ | 1,005 |  | $ | 15,062 |  | $ | 681 |  | $ | 15,743
﻿Depreciation and amortization (b) | $ | 48,561 |  | $ | 2,186 |  | $ | 5,035 |  | $ | 55,782 |  | $ | 11,520 |  | $ | 67,302
﻿Year ended December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Total Revenue | $ | 2,005,193 |  | $ | 1,900,492 |  | $ | 1,228,030 |  | $ | 5,133,715 |  | $ | — |  | $ | 5,133,715
﻿Elimination of intersegment revenue |  | (115,286) |  |  | (97,957) |  |  | — |  |  | (213,243) |  |  | — |  |  | (213,243)
﻿Revenue from external customers | $ | 1,889,907 |  | $ | 1,802,535 |  | $ | 1,228,030 |  | $ | 4,920,472 |  | $ | — |  | $ | 4,920,472
﻿Income from construction operations | $ | 145,213 |  | $ | (1,240) |  | $ | 15,682 |  | $ | 159,655 |  | $ | (54,242) | (a) | $ | 105,413
﻿Capital expenditures | $ | 8,383 |  | $ | 2,877 |  | $ | 1,193 |  | $ | 12,453 |  | $ | 23,459 |  | $ | 35,912
﻿Depreciation and amortization (b) | $ | 22,601 |  | $ | 2,728 |  | $ | 5,507 |  | $ | 30,836 |  | $ | 10,798 |  | $ | 41,634
﻿Year ended December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Total Revenue | $ | 1,730,468 |  | $ | 1,558,431 |  | $ | 1,301,328 |  | $ | 4,590,227 |  | $ | — |  | $ | 4,590,227
﻿Elimination of intersegment revenue |  | (43,324) |  |  | (54,594) |  |  | — |  |  | (97,918) |  |  | — |  |  | (97,918)
﻿Revenue from external customers | $ | 1,687,144 |  | $ | 1,503,837 |  | $ | 1,301,328 |  | $ | 4,492,309 |  | $ | — |  | $ | 4,492,309
﻿Income from construction operations | $ | 220,554 |  | $ | 24,697 |  | $ | 50,998 |  | $ | 296,249 |  | $ | (54,559) | (a) | $ | 241,690
﻿Capital expenditures | $ | 65,377 |  | $ | 735 |  | $ | 6,974 |  | $ | 73,086 |  | $ | 1,927 |  | $ | 75,013
﻿Depreciation and amortization (b) | $ | 31,674 |  | $ | 3,466 |  | $ | 12,018 |  | $ | 47,158 |  | $ | 6,544 |  | $ | 53,702
| (a) |  | Consists primarily of corporate general and administrative expenses.
| (b) |  | Depreciation and amortization is included in income from construction operations.
Total Assets for Reportable Segments |
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﻿ |  |  |  |  |
﻿ | As of December 31,
﻿(in thousands) | 2016 |  | 2015
﻿Civil | $ | 2,152,123 |  | $ | 1,957,991
﻿Building |  | 917,317 |  |  | 711,201
﻿Specialty Contractors |  | 813,851 |  |  | 808,598
﻿Corporate and other (a) |  | 155,329 |  |  | 383,510
﻿Total Assets | $ | 4,038,620 |  | $ | 3,861,300
| (a) |  | Consists principally of cash, equipment, tax-related assets and insurance-related assets, offset by the elimination of assets related to intersegment revenue.
Principal Geographical Areas | ﻿
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﻿ | Year Ended December 31,
﻿(in thousands) | 2016 |  | 2015 |  | 2014
﻿Revenue: |  |  |  |  |  |  |  |
﻿United States | $ | 4,802,393 |  | $ | 4,694,165 |  | $ | 4,323,471
﻿Foreign and U.S. territories |  | 170,683 |  |  | 226,307 |  |  | 168,838
﻿Total | $ | 4,973,076 |  | $ | 4,920,472 |  | $ | 4,492,309
﻿ ﻿
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ | As of December 31,
﻿(in thousands) | 2016 |  | 2015
﻿Assets: |  |  |  |  |
﻿United States | $ | 3,911,865 |  | $ | 3,687,973
﻿Foreign and U.S. territories |  | 126,755 |  |  | 173,327
﻿Total Assets | $ | 4,038,620 |  | $ | 3,861,300
﻿
Reconciliation of Segment Results to Consolidated Income Before Income Taxes |
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﻿ |  |  |  |  |  |  |  |
﻿ | Year Ended December 31,
﻿(in thousands) | 2016 |  | 2015 |  | 2014
﻿Income from construction operations | $ | 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 | $ | 149,115 |  | $ | 73,839 |  | $ | 187,438
﻿

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