Revenue Recognition - Schedule of Changes in Contract Balances Due to Adoption of New Accounting Standards (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Revenue From Contract With Customer [Abstract]
Contract assets	$ 150,577	$ 142,337
Contract liabilities	(30,135)	(37,413)
Net contract assets (liabilities)	120,442	$ 104,924
Change in contract assets	8,240
Change in contract liabilities	7,278
Change in net contract assets (liabilities)	$ 15,518
Percentage of change in contract assets	5.80%
Percentage of change in contract liabilities	(19.50%)
Percentage of change in net contract assets (liabilities)	14.80%