Allowance for Credit Losses and Reserve for Unfunded Loan Commitments - Valuation Allowance - Held to Maturity Debt Securities (Details) - USD ($)	Jun. 30, 2026	Dec. 31, 2025
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss [Abstract]
Allowance for credit losses for debt securities held to maturity	$ 0	$ 0

Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity).

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

Name:	us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant