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Business Combinations - PCD Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Apr. 02, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Combination, Separately Recognized Transactions [Line Items]
Loans receivable, net of allowance for credit losses	$ 14,544,351		$ 13,467,745
Total	$ (156,661)		$ (150,527)	$ (158,694)	$ (162,359)
Territorial
Business Combination, Separately Recognized Transactions [Line Items]
Loans receivable, net of allowance for credit losses		$ 1,067,238
Financial Asset Acquired with Credit Deterioration | Territorial
Business Combination, Separately Recognized Transactions [Line Items]
Loans receivable, net of allowance for credit losses		19,203
Total		(63)
Financing Receivable, Unamortized Purchase Premium (Discount)		(3,757)
Loans receivable, net		$ 15,383

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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Amount of unamortized purchase premium (discount) on financing receivable. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481598/310-20-45-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-4

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-10

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