Derivatives - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Aug. 01, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2016 USD ($) derivative
Derivative [Line Items]
Interest expense	$ 22,483,000	$ 41,155,000	$ 60,453,000
Interest Rate Swap
Derivative [Line Items]
Debt securities, pledged as collateral, available-for-sale, restricted	55,100,000	83,200,000
Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Number of derivatives | derivative						2
Notional amount						$ 30,000,000
Average interest rate						1.10%
Derivative liability, matured				$ 10,000,000	$ 20,000,000
Cash Flow Hedging | Interest Rate Swap | Reclassification Out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Interest expense	$ (142,000)	$ (50,000)