Contract Assets

9 Months Ended

Sep. 30, 2018

Contract With Customer Asset And Liability [Abstract]

Contract assets

Note 8 – Contract Assets

As of September 30,2018 and December 31, 2017, the Company had $155.9 million and $146.5 million, respectively, in contract receivables from contracts with customers. The contract receivables primarily relate to the Company’s right to consideration for work completed but not billed at the reporting date. The contract receivables are transferred to accounts receivable when the rights become unconditional.

	Nine Months Ended
	September 30,
(in thousands)		2018		2017
Beginning balance as of December 31, 2017	$	146,496	$	156,206
Revenue recognized		1,774,620		1,667,090
Amounts collected or invoiced		(1,765,218)		(1,661,717)
Ending balance as of September 30, 2018	$	155,898	$	161,579