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Acquisition Activities (Details) $ in Thousands					12 Months Ended
	Apr. 03, 2023 USD ($)	Oct. 01, 2022 USD ($) item shares	Sep. 30, 2022 item	Sep. 01, 2022 USD ($) shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Acquisition Activities
Amortization period for intangible assets					9 years 9 months 18 days
Provision for credit loss expense					$ 6,755	$ 8,295	$ 36,729
Cambr
Acquisition Activities
Transaction value	$ 46,524
Acquisition related expenses						$ 1,000
Amount of goodwill - Deductible for tax purposes	27,800
Cambr | Core deposit intangible
Acquisition Activities
Acquired through acquisition	1,700,000
Cambr | Other intangible assets
Acquisition Activities
Acquired through acquisition	$ 18,000
Amortization period for intangible assets	9 years 4 months 24 days
Rock Canyon Bank
Acquisition Activities
Transaction value				$ 140,413
Acquisition related expenses							12,300
Shares issued | shares				3,096,745
Number of banking centers added | item			7
Provision for credit loss expense							5,400
Rock Canyon Bank | Core deposit intangible
Acquisition Activities
Acquired through acquisition				$ 13,300
Bank of Jackson Hole
Acquisition Activities
Transaction value		$ 213,448
Acquisition related expenses							24,500
Shares issued | shares		4,391,964
Number of banking centers added | item		12
Provision for credit loss expense							$ 16,300
Bank of Jackson Hole | Core deposit intangible
Acquisition Activities
Acquired through acquisition		$ 29,400

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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