Annual report pursuant to Section 13 and 15(d)

Construction Contract and Other Service Revenues (Details 3)

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Construction Contract and Other Service Revenues (Details 3) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Change in Accounts Receivable    
Beginning balance $ 26,277  
Ending balance 35,444 $ 26,277
Construction contract revenue    
Change in Accounts Receivable    
Beginning balance 6,701 4,577
Ending balance 12,378 6,701
Change in Contract with Customer, Asset    
Beginning balance 3,189 4,884
Ending balance 17,223 3,189
Change in Contract with Customer, Liability    
Beginning balance 568 27,402
Ending balance 1,184 568
Portion of beginning balance recognized in revenue during the year $ 446 $ 27,296