Loans and Leases Held for Investment and Credit Quality - Schedule of Activity in the Allowance for Credit Losses ("ACL") by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 192,264	$ 167,516	$ 167,516
Charge offs	(21,984)	(6,923)
Recoveries	3,399	149
Provision	19,600	29,442
Ending Balance	193,279	190,184	192,264
Commercial & Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	144,188	129,007	129,007
Charge offs	(18,657)	(5,987)
Recoveries	2,971	40
Provision	10,709	26,856
Ending Balance	139,211	149,916	144,188
Construction & Development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,224	4,943	4,943
Charge offs	(209)	0
Recoveries	50	0
Provision	409	769
Ending Balance	7,474	5,712	7,224
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	37,362	29,501	29,501
Charge offs	(3,118)	(936)
Recoveries	378	91
Provision	9,921	1,639
Ending Balance	44,543	30,295	37,362
Commercial Land
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,490	4,065	4,065
Charge offs	0	0
Recoveries	0	18
Provision	(1,439)	178
Ending Balance	$ 2,051	$ 4,261	$ 3,490

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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