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Commitments and Contingencies - Commitments and Letters of Credit (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Other Commitments [Line Items]
Unused commitments to extend credit	$ 2,689,760	$ 2,711,591
Commitments to extend credit
Other Commitments [Line Items]
Unused commitments to extend credit	2,623,228	2,644,139
Standby letters of credit
Other Commitments [Line Items]
Unused commitments to extend credit	$ 66,532	$ 67,452

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- Definition

Unused amount of commitments to extend credit to customers.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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X

- Details

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