Leases (Narratives) (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Leases [Abstract]
Right Of Use Asset Obtained In Exchange For Finance Lease Liability	$ 78,400		$ 117,600
Cash paid for operating leases	10,600	$ 17,400
Cash paid for finance leases	39,259	59,752
Operating Lease Payments	$ 3,100	$ 14,400