Borrowings (Components of Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Interest expense, borrowings:
Interest expense	$ 43,850	$ 41,371	$ 122,589	$ 124,882
Capitalized interest	(2,222)	(2,105)	(6,974)	(10,033)
Amortization of transaction costs	1,407	1,890	4,153	4,645
Interest expense resulting from derivatives	1,007	972	2,997	2,680
Total interest expense	44,042	42,128	122,765	122,174
Fees on early extinguishment of debt	956	0	956	0
Total	$ 44,998	$ 42,128	$ 123,721	$ 122,174