XML 71 R60.htm IDEA: XBRL DOCUMENT v3.21.2
Contract Assets and Liabilities (Schedule of Contract Assets and Contract Liabilities) (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]    
Contract assets $ 116,653 $ 140,348
Allowance for expected credit losses (729) (1,059)
Contract assets, net 115,924 139,289
Contract liabilities $ 6,250 $ 8,206