Interest and Debt Expense - Details of Interest and Debt Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest And Debt Expense [Abstract]
Interest expense	$ 134,931	$ 137,356	$ 136,630
Amortization of deferred financing costs	9,277	19,323	11,023
Total interest and debt expense	$ 144,208	$ 156,679	$ 147,653