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Amount, excluding accrued interest, of increase (decrease) in allowance for credit loss on financing receivable. Excludes net investment in lease.

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

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Amount of increase in financing receivable from purchase. Excludes net investment in lease.

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Loans and Allowance for Credit Losses on Loans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses on loans		$ 49,393	$ 28,523
Net charge-offs (recoveries)		28,802	37,090
Loan balance	$ 22,381,242	22,381,242		$ 20,420,816
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing receivable, purchase	332,000
Provision for credit losses on loans		54,529	20,569
Net charge-offs (recoveries)		23,074	37,054
Loan balance	10,967,807	10,967,807		10,410,766
Commercial \| Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan balance	44,000	44,000
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses on loans		(6,840)	12,935
Net charge-offs (recoveries)		5,698	0
Loan balance	5,314,814	5,314,814		5,500,774
Commercial real estate \| Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan balance	2,200	2,200
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses on loans		414	(543)
Net charge-offs (recoveries)		30	36
Loan balance	568,962	568,962		530,948
Consumer \| Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan balance	1,000	1,000
Criticized
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan balance	$ 897,700	$ 897,700		$ 738,200
Leveraged Lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Net charge-offs (recoveries)			$ 37,100