CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Comprehensive income:
Net income	$ 223,846	$ 144,196	$ 562,804	$ 498,297
Other comprehensive income (loss) – derivative instruments:
Unrealized holding gains (losses) arising during the period	12,026	1,709	24,021	5,216
Losses reclassified into earnings from other comprehensive income	4,595	4,768	13,902	14,019
Other comprehensive income (loss)	16,621	6,477	37,923	19,235
Comprehensive income	240,467	150,673	600,727	517,532
Comprehensive (income) attributable to Noncontrolling Interests	(9,519)	(6,201)	(23,848)	(20,983)
Comprehensive income attributable to controlling interests	$ 230,948	$ 144,472	$ 576,879	$ 496,549