Loans And Allowance For Credit Losses (Amortized Cost Basis of Loans Modified After Adoption of ASU 2022-02) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 125,281	$ 27,924
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	1,666	824
Financing Receivable, Modified in Period, Ninety Days Past Due	2,071	83
Financing Receivable, Modified in Period, Amount	129,018	28,831
Commercial Portfolio Segment [Member] \| Business
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	25,544	3,104
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	0	0
Financing Receivable, Modified in Period, Ninety Days Past Due	0	0
Financing Receivable, Modified in Period, Amount	25,544	3,104
Commercial Portfolio Segment [Member] \| Real estate - business
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	93,924	23,039
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	0	0
Financing Receivable, Modified in Period, Ninety Days Past Due	0	0
Financing Receivable, Modified in Period, Amount	93,924	23,039
Personal Banking Portfolio Segment [Member] \| Real estate - personal
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	3,556	1,061
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	1,136	605
Financing Receivable, Modified in Period, Ninety Days Past Due	1,761	0
Financing Receivable, Modified in Period, Amount	6,453	1,666
Personal Banking Portfolio Segment [Member] \| Consumer
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	150	75
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	17	46
Financing Receivable, Modified in Period, Ninety Days Past Due	14	8
Financing Receivable, Modified in Period, Amount	181	129
Personal Banking Portfolio Segment [Member] \| Consumer credit card
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	2,107	645
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	513	173
Financing Receivable, Modified in Period, Ninety Days Past Due	296	75
Financing Receivable, Modified in Period, Amount	$ 2,916	$ 893

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- Definition

Financing Receivable, Modified in Previous 12 months, Ninety Days Past Due

+ References

No definition available.

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- Definition

Financing Receivable, Modified in Previous 12 months, Thirty to Eighty Nine Days Past Due

+ References

No definition available.

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- Definition

Financing Receivable, Modified in the Previous 12 months, Current

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

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