Borrowings (Components of Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Interest expense, borrowings:
Interest expense	$ 38,935	$ 41,911
Capitalized interest	(2,030)	(4,434)
Amortization of transaction costs	1,286	1,297
Interest expense resulting from derivatives	987	747
Total interest expense	$ 39,178	$ 39,521