Summary of Revenues Disaggregated Based on Timing of Revenue Recognition (Detail) - USD ($) $ in Thousands		3 Months Ended												12 Months Ended
		Dec. 31, 2020	[1]	Sep. 30, 2020	[1]	Jun. 30, 2020	[1]	Mar. 31, 2020	[1]	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Total revenues		$ 98,242		$ 35,478		$ 8,974		$ 543,616		$ 788,803	$ 821,817	$ 957,756	$ 714,723	$ 686,310	[1]	$ 3,283,099	$ 3,221,735
U.S. Operating Segment
Disaggregation of Revenue [Line Items]
Total revenues	[2]													556,909		2,580,903	2,538,957
International Operating Segment
Disaggregation of Revenue [Line Items]
Total revenues														129,401		702,196	682,778
Goods and Services Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Total revenues														607,335		3,110,501	3,061,660
Goods and Services Transferred at a Point in Time | U.S. Operating Segment
Disaggregation of Revenue [Line Items]
Total revenues	[2]													497,338		2,488,716	2,453,313
Goods and Services Transferred at a Point in Time | International Operating Segment
Disaggregation of Revenue [Line Items]
Total revenues														109,997		621,785	608,347
Goods and Services Transferred Over Time
Disaggregation of Revenue [Line Items]
Total revenues														78,975		172,598	160,075
Goods and Services Transferred Over Time | U.S. Operating Segment
Disaggregation of Revenue [Line Items]
Total revenues	[2]													59,571		92,187	85,644
Goods and Services Transferred Over Time | International Operating Segment
Disaggregation of Revenue [Line Items]
Total revenues														$ 19,404		$ 80,411	$ 74,431

[1] Quarterly results during the year ended December 31, 2020 were impacted by the COVID-19 pandemic (see Note 3) as well as impairment recorded (see Notes 1 and 11).

[2] U.S. segment revenues exclude intercompany transactions with the international operating segment.  See Note 21 for additional information on intercompany eliminations.