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Business Combinations - Narrative (Details) $ in Thousands	Apr. 02, 2025 USD ($) shares	Dec. 31, 2025 USD ($) branch	Dec. 31, 2024 USD ($)	Apr. 26, 2024 shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Business Combination, Separately Recognized Transactions [Line Items]
Loans receivable, net of allowance for credit losses		$ 14,544,351	$ 13,467,745
Deposits		$ 15,603,143	14,327,489
Branches operated | branch		74
Total Past Due		$ 14,701,012	13,618,272
Allowance for credit losses on loans receivable		$ 156,661	$ 150,527		$ 158,694	$ 162,359
Territorial
Business Combination, Separately Recognized Transactions [Line Items]
Assets acquired	$ 1,930,000
Loans receivable, net of allowance for credit losses	1,067,238
Deposits	1,670,633
Branches operated | branch		29
Total Past Due	1,280,000
Territorial | Financial Asset Acquired and No Credit Deterioration
Business Combination, Separately Recognized Transactions [Line Items]
Financing Receivable, Unamortized Purchase Premium (Discount)	202,000
Territorial | Financial Asset Acquired with Credit Deterioration
Business Combination, Separately Recognized Transactions [Line Items]
Loans receivable, net of allowance for credit losses	19,203
Financing Receivable, Unamortized Purchase Premium (Discount)	(3,757)
Allowance for credit losses on loans receivable	63
Territorial | Financial Asset Acquired and Purchased Seasoned Loan
Business Combination, Separately Recognized Transactions [Line Items]
Allowance for credit losses on loans receivable	$ 3,900
Territorial
Business Combination, Separately Recognized Transactions [Line Items]
Merger agreement, stock exchange ratio | shares				0.8048
Territorial Bancorp Inc.
Business Combination, Separately Recognized Transactions [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	6,976,754
Hope common stock issued in exchange for Wilshire common stock	$ 73,326

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