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Related Party Transactions - Schedule of Consolidated Balance Sheet Related to Services Provided to Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Related Party Transaction [Line Items] |  |
Contract assets | $ 626,513 | $ 575,089
Contract liabilities | 241,178 | 230,681
Unconsolidated Joint Ventures |  |
Related Party Transaction [Line Items] |  |
Accounts receivable | 35,674 | 37,425
Contract assets | 7,876 | 6,955
Contract liabilities | $ 4,359 | $ 4,509

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