Goodwill and Other Acquisition-Related Intangible Assets - Schedule of Amortization of Finite-Lived Acquisition-Related Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Intangibles with finite lives
Accumulated amortization	$ (78,805)	$ (66,710)
Intangibles with indefinite lives
Gross carrying amount	200,495	89,599
Total net carrying amount	121,690	22,889
Community banking
Intangibles with indefinite lives
Total net carrying amount	115,122	14,881
Community banking \| Trademarks
Intangibles with indefinite lives
Carrying amount	13,800	5,800
Community banking \| Core deposit intangibles
Intangibles with finite lives
Gross carrying amount	158,106	55,206
Accumulated amortization	(56,784)	(46,125)
Net carrying amount	101,322	9,081
Specialty Finance \| Customer list intangibles
Intangibles with finite lives
Gross carrying amount	1,959	1,963
Accumulated amortization	(1,881)	(1,837)
Net carrying amount	78	126
Wealth management \| Customer list and other intangibles
Intangibles with finite lives
Gross carrying amount	26,630	26,630
Accumulated amortization	(20,140)	(18,748)
Net carrying amount	$ 6,490	$ 7,882

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

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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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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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