Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Allowance For Off-Balance Sheet Credit Losses [Roll Forward]
Beginning balance	$ 46,362	$ 21,793
Provision for credit losses	(393)	24,477
Ending balance	45,969	46,270
Commitments to extend credit
Allowance For Off-Balance Sheet Credit Losses [Roll Forward]
Off-balance sheet liability	9,476,459		$ 9,749,085
Standby letters of credit
Allowance For Off-Balance Sheet Credit Losses [Roll Forward]
Off-balance sheet liability	534,570		$ 595,079
Commercial
Allowance For Off-Balance Sheet Credit Losses [Roll Forward]
Beginning balance	36,040	16,550
Provision for credit losses	5,701	15,799
Ending balance	41,741	32,349
Mortgage finance
Allowance For Off-Balance Sheet Credit Losses [Roll Forward]
Beginning balance	6	0
Provision for credit losses	26	13
Ending balance	32	13
Commercial real estate
Allowance For Off-Balance Sheet Credit Losses [Roll Forward]
Beginning balance	10,147	5,222
Provision for credit losses	(6,100)	8,533
Ending balance	4,047	13,755
Consumer
Allowance For Off-Balance Sheet Credit Losses [Roll Forward]
Beginning balance	169	21
Provision for credit losses	(20)	132
Ending balance	$ 149	$ 153

Allowance For Off-Balance Sheet Credit Losses [Roll Forward]

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- Definition

Financing Receivable Allowance For Credit Losses Off Balance Sheet Liability

+ References

No definition available.

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- Definition

Financing Receivable, Provision For Off-Balance Sheet Credit Losses

+ References

No definition available.

+ Details

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- Definition

The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-10

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