Investments - Summary of Financial Information for Equity Method Investments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Schedule Of Equity Method Investments [Line Items]
Current assets	$ 571,969		$ 347,020
Current liabilities	283,989		181,282
Gross profit	13,503	$ 10,870
Equity Method Investments [Member]
Schedule Of Equity Method Investments [Line Items]
Revenue	1,061	1,392
Gross profit	224	583
Net loss	(3,574)	$ (3,496)
Equity Method Investments [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	8,440		12,644
Noncurrent assets	7,033		6,608
Current liabilities	$ 4,505		$ 5,663