v3.20.2
Revenue from Contract with Customers (Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]    
Billed Contracts Receivable $ 92,745 $ 124,701
Contract with Customer, Asset, after Allowance for Credit Loss 15,166 8,071
Contract with Customer, Liability $ 112,064 $ 111,670