Interest and Debt Expense - Details of Interest and Debt Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest And Debt Expense [Abstract]
Interest expense	$ 33,600	$ 33,472	$ 98,613	$ 101,463
Amortization of deferred financing costs	2,666	2,320	7,306	6,957
Total interest and debt expense	$ 36,266	$ 35,792	$ 105,919	$ 108,420