Leases (Operating Leases Weighted Average Remaining Lease Term and Discount Rate) (Details)	3 Months Ended	12 Months Ended
Sep. 30, 2023	Mar. 31, 2023
Operating Leases Remaining Lease Term And Weighted Average Discount Rate [Abstract]
Remaining Lease Term Operating Lease Weighted Average	18.9	19.2
Operating Lease Weighted Average Discount Rate Percent	4.60%	4.70%

Weighted average discount rate for operating lease calculated at point in time.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

Name:	us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant