Mergers & Acquisitions - Consideration Transferred, Identifiable Net Assets Acquired and Goodwill Recognized (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Liabilities assumed
Total identifiable net assets		$ 1,121,401	$ 1,051,318	$ 1,051,318	$ 1,023,762	$ 1,023,762	$ 985,393
Bank of Idaho
Business Combination, Consideration Transferred [Abstract]
Business Combination, Consideration Transferred, Equity Interest	$ 204,986
Cash consideration	2
Business Combination, Consideration Transferred, Total	204,988
Identifiable assets acquired
Cash and cash equivalents	26,127
Debt securities	139,974
Loans receivable, net of ACL	1,075,197
Core deposit intangible	19,758
Accrued income and other assets	33,501
Total identifiable assets acquired	1,294,557
Liabilities assumed
Deposits	1,078,377
Borrowings	71,932
Accrued expenses and other liabilities	9,343
Total liabilities assumed	1,159,652
Total identifiable net assets	134,905
Total identifiable net assets	$ 70,083
Core deposit intangible, estimated life	10 years