Revenue from Contracts with Customers - Summary of Information about Receivables, Contract Assets and Contract Liabilities from Contracts with Customers (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Revenue From Contract With Customer [Abstract]
Trade receivables	$ 218,666	$ 199,572
Current contract assets	3,223	6,314
Current contract liabilities (deferred revenue)	(23,662)	(9,573)
Noncurrent contract liabilities (deferred revenue)	$ (58,728)	$ (38,531)