Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Allowance for credit loss		$ 105,680	$ 85,376	$ 91,847	$ 30,616
Provision for credit losses		17,945	(7,165)	42,188
Threshold for loan analysis		1,000
Interest lost on nonaccrual loans		1,438	2,226	1,804
Interest income on nonaccrual loans		$ 579	$ 471	$ 701
Loans acquired from Valley Republic Bank
Loans and Leases Receivable Disclosure [Line Items]
Provision for credit losses	$ 10,820
Minimum
Loans and Leases Receivable Disclosure [Line Items]
Valuation frequency period		3 months
Maximum
Loans and Leases Receivable Disclosure [Line Items]
Valuation frequency period		12 months