Interest and Debt Expense - Details of Interest and Debt Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest And Debt Expense [Abstract]
Interest expense	$ 32,593	$ 33,690	$ 65,013	$ 67,991
Amortization of deferred financing costs	2,321	2,319	4,640	4,637
Total interest and debt expense	$ 34,914	$ 36,009	$ 69,653	$ 72,628