Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Summary of Activity in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	$ 2,186,965	$ 2,081,947	$ 2,215,639
Other comprehensive loss before reclassifications - swap agreements	(74,236)	(35,674)	(2,659)
Reclassification of realized interest on swap agreements	15,203	(872)	71
Net current period other comprehensive loss	(59,033)	(36,546)	(2,588)
Balance	2,048,553	2,186,965	2,081,947
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(31,175)	516	2,614
Balance	(74,891)	(31,175)	516
AOCI Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Net current period other comprehensive loss	$ 15,317	$ 4,855	$ 490