Loans and Allowance for Credit Losses - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	$ 234,337	$ 238,178
Nonaccrual With No Related Allowance	51,190	41,318
Past Due 90 Days or More and Accruing	1,231	2,650
Commercial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	62,164	60,372
Nonaccrual With No Related Allowance	14,695	7,873
Past Due 90 Days or More and Accruing	0	152
Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	113,375	122,290
Nonaccrual With No Related Allowance	36,495	33,445
Past Due 90 Days or More and Accruing	0	0
BBCC
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	2,299	2,429
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	0	0
Residential real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	35,488	34,660
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	1,070	1,808
Indirect
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	3,428	3,230
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	0	28
Direct
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	4,047	3,997
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	119	133
Home equity
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	13,536	11,200
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	$ 42	$ 529

Amortized cost excluding accrued interest, of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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+ References

No definition available.

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