Derivatives (Effect of Interest Rate Contracts on the Statement of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative Gain Loss On Derivative Net [Abstract]
(Gain) loss reclassified from AOCI into Income	$ (1,344)	$ 23	$ (2,494)	$ 589
Interest rate contracts
Derivative Gain Loss On Derivative Net [Abstract]
(Gain) loss reclassified from AOCI into Income	3,073	8,360
AOCI into Income
Derivative Gain Loss On Derivative Net [Abstract]
(Gain) loss reclassified from AOCI into Income	$ (1,345)	$ 24