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Goodwill and Other Intangible Assets - Summary of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 249,772	$ 249,772
Accumulated Amortization	(111,380)	(103,160)
Net Carrying Amount	138,392	146,612
Core deposit intangibles
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	242,102	242,102
Accumulated Amortization	(105,930)	(97,936)
Net Carrying Amount	136,172	144,166
Customer relationship intangible
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	7,670	7,670
Accumulated Amortization	(5,450)	(5,224)
Net Carrying Amount	$ 2,220	$ 2,446

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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