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Construction Joint Ventures - Change in Non-controlling Interest (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]    
Balance, beginning of period $ 1,293 $ 7,859
Net income attributable to noncontrolling interest 100 46
Distributions to noncontrolling interest owners 0 5,100
Balance, end of period $ 1,393 $ 2,805