Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 42,755	$ 40,979	$ 118,413	$ 117,251
Net income (loss) attributable to common stockholders	42,758	40,979	118,417	117,251
Other comprehensive income (loss):
Increase (decrease) in fair value of cash flow hedge	960	(401)	5,077	(2,774)
Less: reclassification adjustment for amounts recognized in net income	(390)	(27)	(1,031)	326
Total other comprehensive income (loss)	(1,350)	374	(6,108)	3,100
Comprehensive income	41,405	41,353	112,305	120,351
Less: comprehensive loss attributable to noncontrolling interest	3	0	4	0
Comprehensive income	$ 41,408	$ 41,353	$ 112,309	$ 120,351