Contract Assets (Tables)

6 Months Ended

Jun. 30, 2020

Contract Assets

Changes In Contract Assets

Significant changes in the contract asset balance during the period are as follows:

	Six Months Ended
	June 30,
(in thousands)		2020		2019
Beginning balance as of December 31,	$	161,061	$	140,082
Revenue recognized		915,600		1,109,396
Amounts collected or invoiced		(923,020)		(1,093,932)
Ending balance as of June 30,	$	153,641	$	155,546