Borrowings (Components of Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest expense, borrowings:
Interest expense	$ 57,604	$ 39,804	$ 108,009	$ 78,739
Capitalized interest	(2,248)	(2,722)	(4,866)	(4,752)
Amortization of transaction costs	1,814	1,460	3,260	2,746
Interest expense resulting from derivatives	23	1,003	589	1,990
Total interest expense	$ 57,193	$ 39,545	$ 106,992	$ 78,723