Loans and Allowance for Credit Losses on Loans - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses on loans	$ 40,043	$ 12,023
Net charge-offs (recoveries)	22,719	28,149
Loan balance	21,859,136		$ 20,420,816
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses on loans	26,200	18,198
Net charge-offs (recoveries)	17,283	28,154
Loan balance	10,533,930		10,410,766
Commercial | Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan balance	41,900
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses on loans	12,245	(1,730)
Net charge-offs (recoveries)	5,436	0
Loan balance	5,689,094		5,500,774
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses on loans	153	(785)
Net charge-offs (recoveries)	0	(5)
Loan balance	557,951		530,948
Consumer | Asset Pledged as Collateral
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan balance	1,000
Criticized
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan balance	$ 859,700		$ 738,200
Leveraged Lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Net charge-offs (recoveries)		$ 28,100