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Employee Benefit Plans (Deferred Compensation Plan Narrative) (Details) - Deferred Compensation Plan - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Deferred Compensation Plan
Percentage of vested salary and incentive compensation deferrals permitted to eligible employees	100.00%
Fair value of marketable securities	$ 28,431	$ 24,809
Other assets
Deferred Compensation Plan
Fair value of marketable securities	28,400	24,800
Other Liabilities
Deferred Compensation Plan
Fair value of marketable securities	$ 28,400	$ 24,800

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- Definition

Deferred Compensation Plan Compensation Deferrals Percentage Allowed

+ References

No definition available.

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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

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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