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
Net income	$ 57,944	$ 70,534	$ 202,127	$ 172,588
Other comprehensive (loss) income:
Effective portion of change in fair value of derivative instruments	(3,851)	2,717	(18,567)	16,511
Reclassification adjustment of derivative instruments included in net income	1,677	1,148	2,085	4,701
Unrealized gain (loss) on available-for-sale debt securities	169	24	429	(51)
Other comprehensive (loss) income	(2,005)	3,889	(16,053)	21,161
Comprehensive income	55,939	74,423	186,074	193,749
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	979	812	2,988	2,366
Other comprehensive (loss) income attributable to noncontrolling interests	(287)	140	(1,176)	818
Comprehensive income attributable to noncontrolling interests	692	952	1,812	3,184
Comprehensive income attributable to the Company	55,247	73,471	184,262	190,565
Partnership Interest [Member]
Net income	57,944	70,534	202,127	172,588
Other comprehensive (loss) income:
Effective portion of change in fair value of derivative instruments	(3,851)	2,717	(18,567)	16,511
Reclassification adjustment of derivative instruments included in net income	1,677	1,148	2,085	4,701
Unrealized gain (loss) on available-for-sale debt securities	169	24	429	(51)
Other comprehensive (loss) income	(2,005)	3,889	(16,053)	21,161
Comprehensive income	55,939	74,423	186,074	193,749
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	822	665	2,532	2,008
Other comprehensive (loss) income attributable to noncontrolling interests	(279)	132	(1,140)	775
Comprehensive income attributable to noncontrolling interests	543	797	1,392	2,783
Comprehensive income attributable to the Company	$ 55,396	$ 73,626	$ 184,682	$ 190,966