Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Deferred compensation plan) (Details)

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Fair Value Measurements (Deferred compensation plan) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Mar. 31, 2022
Fair Value Disclosures [Abstract]          
Deferred compensation plan assets $ 6,020   $ 6,020   $ 5,391
Deferred compensation plan liabilities 5,416   5,416   $ 4,837
Deferred compensation plan expense/(income) 464 $ 292 (499) $ 610  
Unrealized gain (loss) on investments $ (484) $ (314) $ 450 $ (620)  
Maximum term of forward contracts     30 days