Derivatives (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Mar. 31, 2021
Interest Rate Derivatives [Abstract]
Total notional amount of Company's variable interest rate swaps on debt	$ 235,000		$ 235,000	$ 235,000
Reclassify net losses on interest rate contracts from AOCI to earnings over the next twelve months			$ 3,200
Amounts reclassified from AOCI to interest expense	$ (1,003)	$ (961)