Fair Value Measurements - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Realized (gains) losses included in net income, net of premium amortization	$ 0	$ 0
Impaired loans not covered under loss-share agreements	18,288,000	12,939,000
Specific reserve included in allowance for loan losses	192,090,000	164,171,000	$ 176,144,000
Changes in fair value, gain (loss)	(9,854,000)	(10,354,000)	$ 12,057,000
Impaired Loans, Not Covered
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Specific reserve included in allowance for loan losses	$ 3,556,000	$ 5,011,000