Summary of Fair Value of Level 3 Financial Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value at the beginning of the period	$ 50,800
Additions		$ 600
Changes in estimated fair value	(7,200)	45,000
Fair value at the end of the period	43,600	50,800
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value at the beginning of the period	50,800	5,200
Additions		600
Changes in estimated fair value	(7,200)	45,000
Fair value at the end of the period	$ 43,600	$ 50,800