Goodwill and Intangible Assets - Schedule of Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Amortizable intangible assets:
Gross carrying amount	$ 26,598	$ 26,598
Accumulated amortization	(23,976)	(23,170)
Net amount	2,622	3,427
Goodwill:
Gross carrying amount	348,237	348,237
Accumulated amortization	0	0
Net amount	348,237	348,237
Commercial
Goodwill:
Gross carrying amount	210,331	210,331
Accumulated amortization	0	0
Net amount	210,331	210,331
Consumer
Goodwill:
Gross carrying amount	126,095	126,095
Accumulated amortization	0	0
Net amount	126,095	126,095
Wealth segment
Goodwill:
Gross carrying amount	11,811	11,811
Accumulated amortization	0	0
Net amount	11,811	11,811
Core deposit intangible assets
Amortizable intangible assets:
Gross carrying amount	20,498	20,498
Accumulated amortization	(19,036)	(18,304)
Net amount	1,462	2,194
Trust customer intangible asset
Amortizable intangible assets:
Gross carrying amount	6,100	6,100
Accumulated amortization	(4,940)	(4,866)
Net amount	$ 1,160	$ 1,233