Derivative Financial Instruments - Details of Derivative Contracts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Zero Cost Collar One [Member]
Derivative [Line Items]
Date of transaction	May 13, 2021	Jul. 13, 2020
Type of derivative	Zero cost collar	Zero cost collar
Total notional amount	$ 39,000	$ 30,000
Month of settlement, start	2022-01	2021-01
Month of settlement, end	2022-09	2021-06
Zero Cost Collar Two [Member]
Derivative [Line Items]
Date of transaction	Aug. 13, 2021	Dec. 15, 2020
Type of derivative	Zero cost collar	Zero cost collar
Total notional amount	$ 48,000	$ 30,000
Month of settlement, start	2022-01	2021-07
Month of settlement, end	2022-12	2021-12
Zero Cost Collar Three [Member]
Derivative [Line Items]
Date of transaction		Dec. 18, 2020
Type of derivative		Zero cost collar
Total notional amount		$ 18,000
Month of settlement, start		2021-03
Month of settlement, end		2021-06