Business Segments (Reconciliation of Segment Results to Consolidated Income Before Income Taxes) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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Income from construction operations | $ 90,680 | $ 47,306 | $ 54,815 | $ (925) | $ 59,343 | $ 49,072 | $ 34,045 | $ 37,017 | $ 191,876 | $ 179,477 | $ 201,920 | |||||||||||
Other income, net | 4,256 | 43,882 | 6,977 | |||||||||||||||||||
Interest expense | (63,519) | (69,384) | (59,782) | |||||||||||||||||||
INCOME BEFORE INCOME TAXES | 75,152 | $ 32,804 | $ 39,867 | $ (15,210) | 45,193 | $ 34,396 | $ 52,516 | $ 21,870 | 132,613 | 153,975 | 149,115 | |||||||||||
Assets | 4,387,752 | 4,264,123 | 4,387,752 | 4,264,123 | ||||||||||||||||||
Reportable Segments [Member] | ||||||||||||||||||||||
Income from construction operations | 255,625 | [1] | 245,344 | 262,140 | [2] | |||||||||||||||||
Civil | ||||||||||||||||||||||
Income from construction operations | 168,256 | [1] | 192,207 | 172,668 | [2] | |||||||||||||||||
Assets | 2,574,326 | 2,452,108 | 2,574,326 | 2,452,108 | ||||||||||||||||||
Building | ||||||||||||||||||||||
Income from construction operations | 43,939 | [1] | 34,199 | 51,564 | [2] | |||||||||||||||||
Assets | 913,746 | 909,207 | 913,746 | 909,207 | ||||||||||||||||||
Specialty Contractors | ||||||||||||||||||||||
Income from construction operations | 43,430 | [1] | 18,938 | 37,908 | [2] | |||||||||||||||||
Assets | 745,313 | 767,807 | 745,313 | 767,807 | ||||||||||||||||||
Corporate [Member] | ||||||||||||||||||||||
Income from construction operations | [3] | (63,749) | [1] | (65,867) | $ (60,220) | [2] | ||||||||||||||||
Assets | [4] | $ 154,367 | $ 135,001 | $ 154,367 | $ 135,001 | |||||||||||||||||
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