Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 517,582	$ 451,123	$ 447,080
Other comprehensive income (loss):
Change in fair value of interest rate swaps	(73,686)	(66,843)	1,430
Total comprehensive income	443,896	384,280	448,510
Less: comprehensive income attributable to noncontrolling interests	32,244	27,929	31,861
Comprehensive income attributable to common stockholders	$ 411,652	$ 356,351	$ 416,649