Contract Assets and Liabilities (Schedule of Contract Assets and Contract Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Contract assets	$ 85,257	$ 79,070
Allowance for expected credit losses	(679)
Contract assets, net	84,578	79,070
Contract liabilities	$ 9,005	$ 5,656