Revenue from Contracts with Customers - Schedule of Revenue from External Customers by Products and Services (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue from External Customer [Line Items]
Total noninterest income in-scope of ASC 606	$ 30,117,000	$ 19,574,000	$ 79,423,000	$ 57,047,000
Total noninterest income (loss) out-of-scope of ASC 606	3,411,000	(417,000)	7,145,000	(321,539,000)
Total noninterest income (loss)	33,528,000	19,157,000	86,568,000	(264,492,000)
Trust and investment advisory fees
Revenue from External Customer [Line Items]
Total noninterest income in-scope of ASC 606	14,909,000	6,235,000	28,164,000	18,136,000
Service charges on deposit accounts
Revenue from External Customer [Line Items]
Total noninterest income in-scope of ASC 606	8,140,000	7,403,000	23,578,000	21,117,000
Debit card processing fees
Revenue from External Customer [Line Items]
Total noninterest income in-scope of ASC 606	3,806,000	3,388,000	10,575,000	10,071,000
Other noninterest income
Revenue from External Customer [Line Items]
Total noninterest income in-scope of ASC 606	$ 3,262,000	$ 2,548,000	17,106,000	7,723,000
Early Withdrawal Penalty
Revenue from External Customer [Line Items]
Total noninterest income in-scope of ASC 606			$ 7,800,000	$ 0