Notes, Loans and Finance Leases Payable, net (Narratives) (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Mar. 31, 2025
Long-Term Debt, Unclassified [Abstract]
Notes, loans and leases payable, gross	$ 7,462,822		$ 6,703,510
Interest Paid, Including Capitalized Interest, Operating and Investing Activities [Abstract]
Interest paid in cash	251,099	$ 207,241
Private Placement
Long-Term Debt, Unclassified [Abstract]
Notes, loans and leases payable, gross	$ 1,700,000		$ 1,700,000