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Business Segments (Reportable Segments) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Business Segments |  |  |  |
Revenue from external customers |  | $ 4,641,830 | $ 5,318,763 | $ 4,450,832
Income (loss) from construction operations |  | 226,804 | 262,344 | (365,007)
Capital expenditures |  | 38,594 | 54,781 | 84,196
Depreciation and amortization |  | 118,229 | 107,034 | 65,044
Goodwill impairment charge | $ 379,900 | 0 | 0 | 379,863
Goodwill impairment charge, after tax |  |  |  | $ 330,500
Goodwill impairment charge, after tax, diluted (in dollars per share) |  |  |  | $ 6.58
Favorable Adjustments Reflecting Improved Profitability On Mass-Transit Project |  |  |  |
Business Segments |  |  |  |
Favorable arbitration |  | 16,300 |  |
Favorable arbitration, after tax |  | $ 13,500 |  |
Favorable arbitration, after tax, diluted (in dollars per share) |  | $ 0.26 |  |
Operating Segments |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | $ 5,138,702 | 5,814,687 | $ 4,748,588
Income (loss) from construction operations |  | 284,974 | 316,196 | (299,819)
Capital expenditures |  | 37,902 | 53,839 | 83,362
Depreciation and amortization |  | 107,716 | 95,936 | 53,975
Corporate, Non-Segment |  |  |  |
Business Segments |  |  |  |
Income (loss) from construction operations |  | (58,170) | (53,852) | (65,188)
Capital expenditures |  | 692 | 942 | 834
Depreciation and amortization |  | 10,513 | 11,098 | 11,069
Intersegment Eliminations |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | (496,872) | (495,924) | (297,756)
Civil |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | 2,095,760 | 2,199,899 | 1,779,352
Goodwill impairment charge |  |  |  | 210,200
Civil | Favorable Adjustments Reflecting Improved Profitability On Mass-Transit Project |  |  |  |
Business Segments |  |  |  |
Favorable arbitration |  | 29,000 |  |
Favorable arbitration, after tax |  | $ 20,900 |  |
Favorable arbitration, after tax, diluted (in dollars per share) |  | $ 0.41 |  |
Civil | Unfavorable Adjustment Due to Transportation Project |  |  |  |
Business Segments |  |  |  |
Loss contingency |  | $ 13,300 |  |
Loss contingency, after tax |  | $ 10,300 |  |
Loss contingency, after tax, diluted (in dollars per share) |  | $ 0.20 |  |
Civil | Favorable Remeasurement Of Investment In Joint Venture |  |  |  |
Business Segments |  |  |  |
Favorable arbitration |  |  |  | 37,800
Favorable arbitration, after tax |  |  |  | $ 27,100
Favorable arbitration, after tax, diluted (in dollars per share) |  |  |  | $ 0.54
Civil | Alaskan Way Viaduct Matter |  |  |  |
Business Segments |  |  |  |
Loss contingency |  |  |  | $ 166,800
Loss contingency, after tax |  |  |  | $ 119,400
Loss contingency, after tax, diluted (in dollars per share) |  |  |  | $ 2.38
Civil | Operating Segments |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | $ 2,443,828 | 2,565,210 | $ 2,054,097
Income (loss) from construction operations |  | 266,214 | 245,835 | (150,837)
Capital expenditures |  | 37,067 | 51,044 | 82,156
Depreciation and amortization |  | 102,723 | 90,250 | 47,905
Civil | Intersegment Eliminations |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | (348,068) | (365,311) | (274,745)
Building |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | 1,428,102 | 1,984,641 | 1,742,040
Goodwill impairment charge |  |  |  | 13,500
Building | Unfavorable Adjustment Due to Transportation Project |  |  |  |
Business Segments |  |  |  |
Loss contingency |  | 13,300 |  |
Loss contingency, after tax |  | $ 10,200 |  |
Loss contingency, after tax, diluted (in dollars per share) |  | $ 0.20 |  |
Building | Operating Segments |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | $ 1,574,759 | 2,114,459 | 1,764,753
Income (loss) from construction operations |  | 28,721 | 53,158 | 23,655
Capital expenditures |  | 359 | 878 | 518
Depreciation and amortization |  | 1,677 | 1,703 | 1,934
Building | Intersegment Eliminations |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | (146,657) | (129,818) | (22,713)
Specialty Contractors |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | 1,117,968 | 1,134,223 | 929,440
Goodwill impairment charge |  |  |  | 156,200
Specialty Contractors | Unfavorable Adjustment Due to Transportation Project |  |  |  |
Business Segments |  |  |  |
Loss contingency |  | 17,600 |  |
Loss contingency, after tax |  | $ 12,700 |  |
Loss contingency, after tax, diluted (in dollars per share) |  | $ 0.25 |  |
Specialty Contractors | Favorable Legal Ruling Pertaining To Electrical Project In New York |  |  |  |
Business Segments |  |  |  |
Favorable arbitration |  | $ 20,100 |  |
Favorable arbitration, after tax |  | $ 14,500 |  |
Favorable arbitration, after tax, diluted (in dollars per share) |  | $ 0.28 |  |
Specialty Contractors | Unfavorable Adjustments Due to Second Transportation Project |  |  |  |
Business Segments |  |  |  |
Loss contingency |  | $ 19,000 |  |
Loss contingency, after tax |  | $ 13,700 |  |
Loss contingency, after tax, diluted (in dollars per share) |  | $ 0.27 |  |
Specialty Contractors | Unfavorable Adjustments Due to Mass Transit Project |  |  |  |
Business Segments |  |  |  |
Loss contingency |  | $ 16,200 |  |
Loss contingency, after tax |  | $ 11,700 |  |
Loss contingency, after tax, diluted (in dollars per share) |  | $ 0.23 |  |
Specialty Contractors | Unfavorable Legal Ruling Pertaining To Mechanical Project In California |  |  |  |
Business Segments |  |  |  |
Loss contingency |  |  | 15,200 |
Loss contingency, after tax |  |  | $ 11,000 |
Loss contingency, after tax, diluted (in dollars per share) |  |  | $ 0.22 |
Specialty Contractors | Adverse Arbitration Ruling Pertaining To Electrical Project In New York |  |  |  |
Business Segments |  |  |  |
Loss contingency |  |  | $ 13,200 |
Loss contingency, after tax |  |  | $ 9,600 |
Loss contingency, after tax, diluted (in dollars per share) |  |  | $ 0.19 |
Specialty Contractors | Favorable Arbitration Decision |  |  |  |
Business Segments |  |  |  |
Favorable arbitration |  |  | $ 25,700 |
Favorable arbitration, after tax |  |  | $ 18,600 |
Favorable arbitration, after tax, diluted (in dollars per share) |  |  | $ 0.36 |
Specialty Contractors | Operating Segments |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | $ 1,120,115 | $ 1,135,018 | 929,738
Income (loss) from construction operations |  | (9,961) | 17,203 | (172,637)
Capital expenditures |  | 476 | 1,917 | 688
Depreciation and amortization |  | 3,316 | 3,983 | 4,136
Specialty Contractors | Intersegment Eliminations |  |  |  |
Business Segments |  |  |  |
Revenue from external customers |  | $ (2,147) | $ (795) | $ (298)

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