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Fair Value Measurement of Assets and Liabilities - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Transfer of loans to loans held for sale, net	$ 23,411,000	$ 1,042,725,000	$ 10,000,000
Allowance for credit loss, write-off		1,200,000	4,200,000
Net loans	8,800,000	8,800,000
Collateral dependent impaired loans, recorded investment	187,100,000	215,200,000
Specific valuation allowance allocations	82,000,000.0	75,800,000
Foreclosed real estate expense	$ 3,400,000	$ 0	$ 0
Discount adjustment of the appraisals of foreclosed assets	0.00%	0.00%
Taxi Medallion Loan Portfolio
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent impaired loans, recorded investment	$ 47,100,000	$ 49,500,000
Non-recurring fair value measurements: | Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Reported net carrying amount of impaired loans	$ 105,100,000	$ 139,400,000

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