Fair Value Measurements (Reconciliation of Contingent Consideration Liabilities Related to Acquisitions) (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance beginning of year	$ 6,700
Balance at end of period	2,500
Contingent consideration [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance beginning of year	6,705	$ 0
Change in contingent consideration liability	(4,173)	0
Balance at end of period	$ 2,532	$ 0