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Revenue | 3 Months Ended
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Mar. 31, 2019
Revenue [Abstract] |
Revenue | (3) Revenue ﻿ Disaggregation of Revenue ﻿ The following tables disaggregate revenue by end market, customer type and contract type, which the Company believes best depict how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors for the three months ended March 31, 2019 and 2018. ﻿ ﻿
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﻿ |  | Three Months Ended
﻿ |  | March 31,
﻿(in thousands) |  | 2019 |  | 2018
﻿Civil segment revenue by end market: |  |  |  |  |  |
﻿Mass transit |  | $ | 146,250 |  | $ | 150,126
﻿Bridges |  |  | 69,307 |  |  | 62,811
﻿Highways |  |  | 41,043 |  |  | 17,257
﻿Tunneling |  |  | 34,940 |  |  | 8,701
﻿Other |  |  | 41,954 |  |  | 24,219
﻿Total Civil segment revenue |  | $ | 333,494 |  | $ | 263,114
﻿ ﻿
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﻿ |  |  |  |  |  |
﻿ |  | Three Months Ended
﻿ |  | March 31,
﻿(in thousands) |  | 2019 |  | 2018
﻿Building segment revenue by end market: |  |  |  |  |  |
﻿Commercial and industrial facilities |  | $ | 109,353 |  | $ | 173,747
﻿Health care facilities |  |  | 80,227 |  |  | 75,081
﻿Municipal and government |  |  | 61,962 |  |  | 50,452
﻿Hospitality and gaming |  |  | 47,957 |  |  | 81,765
﻿Education facilities |  |  | 42,528 |  |  | 32,482
﻿Mixed use |  |  | 36,627 |  |  | 41,777
﻿Mass transit |  |  | 29,177 |  |  | —
﻿Other |  |  | 25,635 |  |  | 34,937
﻿Total Building segment revenue |  | $ | 433,466 |  | $ | 490,241
﻿ ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Three Months Ended
﻿ |  | March 31,
﻿(in thousands) |  | 2019 |  | 2018
﻿Specialty Contractors segment revenue by end market: |  |  |  |  |  |
﻿Mass transit |  | $ | 81,394 |  | $ | 75,182
﻿Commercial and industrial facilities |  |  | 44,023 |  |  | 39,339
﻿Health care facilities |  |  | 11,652 |  |  | 16,365
﻿Education facilities |  |  | 11,580 |  |  | 25,304
﻿Multi-unit residential |  |  | 11,389 |  |  | 23,089
﻿Mixed use |  |  | 10,669 |  |  | 47,857
﻿Transportation |  |  | 6,435 |  |  | 33,985
﻿Other |  |  | 14,385 |  |  | 13,680
﻿Total Specialty Contractors segment revenue |  | $ | 191,527 |  | $ | 274,801
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended March 31, 2019
﻿ |  |  |  |  |  |  |  | Specialty |  |  |
﻿(in thousands) |  | Civil |  | Building |  | Contractors |  | Total
﻿Revenue by customer type: |  |  |  |  |  |  |  |  |  |  |  |
﻿State and local agencies |  | $ | 257,107 |  | $ | 144,686 |  | $ | 97,071 |  | $ | 498,864
﻿Federal agencies |  |  | 23,158 |  |  | 40,151 |  |  | 7,769 |  |  | 71,078
﻿Private owners |  |  | 53,229 |  |  | 248,629 |  |  | 86,687 |  |  | 388,545
﻿Total revenue |  | $ | 333,494 |  | $ | 433,466 |  | $ | 191,527 |  | $ | 958,487
﻿ ﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended March 31, 2018
﻿ |  |  |  |  |  |  |  | Specialty |  |  |
﻿(in thousands) |  | Civil |  | Building |  | Contractors |  | Total
﻿Revenue by customer type: |  |  |  |  |  |  |  |  |  |  |  |
﻿State and local agencies |  | $ | 226,351 |  | $ | 115,986 |  | $ | 106,320 |  | $ | 448,657
﻿Federal agencies |  |  | 9,855 |  |  | 44,311 |  |  | 18,723 |  |  | 72,889
﻿Private owners |  |  | 26,908 |  |  | 329,944 |  |  | 149,758 |  |  | 506,610
﻿Total revenue |  | $ | 263,114 |  | $ | 490,241 |  | $ | 274,801 |  | $ | 1,028,156
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended March 31, 2019
﻿ |  |  |  |  |  |  |  | Specialty |  |  |
﻿(in thousands) |  | Civil |  | Building |  | Contractors |  | Total
﻿Revenue by contract type: |  |  |  |  |  |  |  |  |  |  |  |
﻿Fixed price |  | $ | 242,867 |  | $ | 114,359 |  | $ | 155,264 |  | $ | 512,490
﻿Guaranteed maximum price |  |  | 2,233 |  |  | 207,131 |  |  | 3,606 |  |  | 212,970
﻿Unit price |  |  | 84,878 |  |  | 5,228 |  |  | 19,003 |  |  | 109,109
﻿Cost plus fee and other |  |  | 3,516 |  |  | 106,748 |  |  | 13,654 |  |  | 123,918
﻿Total revenue |  | $ | 333,494 |  | $ | 433,466 |  | $ | 191,527 |  | $ | 958,487
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended March 31, 2018
﻿ |  |  |  |  |  |  |  | Specialty |  |  |
﻿(in thousands) |  | Civil |  | Building |  | Contractors |  | Total
﻿Revenue by contract type: |  |  |  |  |  |  |  |  |  |  |  |
﻿Fixed price |  | $ | 183,904 |  | $ | 79,001 |  | $ | 247,424 |  | $ | 510,329
﻿Guaranteed maximum price |  |  | 5,072 |  |  | 262,028 |  |  | 15,579 |  |  | 282,679
﻿Unit price |  |  | 68,754 |  |  | 8,816 |  |  | 6,658 |  |  | 84,228
﻿Cost plus fee and other |  |  | 5,384 |  |  | 140,396 |  |  | 5,140 |  |  | 150,920
﻿Total revenue |  | $ | 263,114 |  | $ | 490,241 |  | $ | 274,801 |  | $ | 1,028,156
﻿ Changes in Contract Estimates that Impact Revenue ﻿ Changes to the total estimated contract revenue or cost, either due to unexpected events or revisions to management’s initial estimates, for a given project are recognized in the period in which they are determined. Net revenue recognized during the three month periods ended March 31, 2019 and 2018 related to performance obligations satisfied (or partially satisfied) in prior periods was immaterial. ﻿ Remaining Performance Obligations ﻿ Remaining performance obligations represent the transaction price of firm orders for which work has not been performed and exclude unexercised contract options. As of March 31, 2019, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $4.5 billion, $2.0 billion and $1.8 billion for the Civil, Building and Specialty Contractors segments, respectively. As of March 31, 2018, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $4.5 billion, $2.2 billion and $1.8 billion for the Civil, Building and Specialty Contractors segments, respectively. The Company typically recognizes revenue on Civil segment projects over a period of three to five years, whereas for projects in the Building and Specialty Contractors segments, the Company typically recognizes revenue over a period of one to three years.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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