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Related Party Transactions | 12 Months Ended
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Dec. 31, 2018
Related Party Transactions [Abstract] |
Related Party Transactions | 15. Related Party Transactions ﻿ The Company leases, at market rates, certain facilities from an entity owned by Ronald N. Tutor, the Company’s Chairman and Chief Executive Officer. Under these leases, the Company paid $3.0 million in 2018 and $2.8 million in both 2017 and 2016, and recognized expense of $3.2 million in each of the three years. ﻿ Raymond R. Oneglia, Vice Chairman of O&G, is a director of the Company. The Company occasionally forms construction project joint ventures with O&G. During the three years ended December 31, 2018, the Company had active joint ventures with O&G including two infrastructure projects in the northeastern United States that were completed in 2017 and one to construct the Purple Line Section 2 Extension project in Los Angeles, California in which the Company’s and O&G’s joint venture interests are 75% and 25%, respectively. O&G may provide equipment and services to these joint ventures on customary trade terms; there were no material p ayments made by these joint ventures to O&G for services and equipment during the years ended December 31, 2018, 2017 and 2016. ﻿ Peter Arkley, Senior Managing Director, Construction Services Group, of Alliant Insurance Services, Inc. (“Alliant”), is a director of the Company. The Company uses Alliant for various insurance-related services. The associated expenses for services provided for the years ended December 31, 2018, 2017 and 2016 were $14.7 million, $17.6 million and $8.9 million, respectively. The Company owed Alliant $4.1 million and $0.5 million as of December 31, 2018 and 2017, respectively, for services rendered.

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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -URI http://asc.fasb.org/topic&trid=2122745 + Details
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