Employee Benefit Plans - Endorsement Split-Dollar Life Insurance (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Retirement Benefits [Abstract]
Present value of future proceeds to be received under corporate life insurance policies, liability	$ 100	$ 100
Aggregate cash surrender value of underlying life insurance, net of policy loans	1,000	1,000
Gain (loss) recognized on corporate-owned life insurance policies	$ (18,000)	$ 13,000	$ 31,000

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_CashSurrenderValueOfLifeInsurance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant