Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income	$ 13,310	$ 57,944	$ 8,101	$ 202,127
Other comprehensive income (loss):
Effective portion of change in fair value of derivative instruments	(666)	(3,851)	(19,187)	(18,567)
Reclassification adjustment of derivative instruments included in net income	2,570	1,677	6,479	2,085
Unrealized gain on available-for-sale debt securities	53	169	379	429
Other comprehensive income (loss)	1,957	(2,005)	(12,329)	(16,053)
Comprehensive income (loss)	15,267	55,939	(4,228)	186,074
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	622	979	1,699	2,988
Other comprehensive income (loss) attributable to noncontrolling interests	42	(287)	(1,106)	(1,176)
Comprehensive income attributable to noncontrolling interests	664	692	593	1,812
Comprehensive income (loss) attributable to the Company	14,603	55,247	(4,821)	184,262
Partnership Interest [Member]
Net income	13,310	57,944	8,101	202,127
Other comprehensive income (loss):
Effective portion of change in fair value of derivative instruments	(666)	(3,851)	(19,187)	(18,567)
Reclassification adjustment of derivative instruments included in net income	2,570	1,677	6,479	2,085
Unrealized gain on available-for-sale debt securities	53	169	379	429
Other comprehensive income (loss)	1,957	(2,005)	(12,329)	(16,053)
Comprehensive income (loss)	15,267	55,939	(4,228)	186,074
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	565	822	1,670	2,532
Other comprehensive income (loss) attributable to noncontrolling interests	33	(279)	(1,055)	(1,140)
Comprehensive income attributable to noncontrolling interests	598	543	615	1,392
Comprehensive income (loss) attributable to the Company	$ 14,669	$ 55,396	$ (4,843)	$ 184,682