Interest and Debt Expense - Details of Interest and Debt Expense (Parenthetical) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest And Debt Expense [Line Items]
Proceeds from debt refinancing	$ 9,791	$ 1,259,843	$ 16,700
1633 Broadway [Member]
Interest And Debt Expense [Line Items]
Expense from non-cash write-off of deferred financing costs	8,215
Proceeds from debt refinancing	$ 1,250,000