CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME OF ERP OPERATING LIMITED PARTNERSHIP - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income	$ 4,480,104	$ 908,018	$ 658,683
Other comprehensive income (loss) – derivative instruments:
Unrealized holding (losses) gains arising during the year	(3,915)	2,219	(33,306)
Losses reclassified into earnings from other comprehensive income	41,758	18,244	16,868
Other comprehensive income (loss) – foreign currency:
Currency translation adjustments arising during the year	264	(327)	(552)
Other comprehensive income (loss)	38,107	20,136	(16,990)
Comprehensive income	4,518,211	928,154	641,693
Comprehensive (income) attributable to Noncontrolling Interests	(189,411)	(38,668)	(26,728)
Comprehensive income attributable to controlling interests	4,328,800	889,486	614,965
ERPOP [Member]
Net income	4,480,104	908,018	658,683
Other comprehensive income (loss) – derivative instruments:
Unrealized holding (losses) gains arising during the year	(3,915)	2,219	(33,306)
Losses reclassified into earnings from other comprehensive income	41,758	18,244	16,868
Other comprehensive income (loss) – foreign currency:
Currency translation adjustments arising during the year	264	(327)	(552)
Other comprehensive income (loss)	38,107	20,136	(16,990)
Comprehensive income	4,518,211	928,154	641,693
Comprehensive (income) attributable to Noncontrolling Interests	(16,430)	(3,657)	(2,544)
Comprehensive income attributable to controlling interests	$ 4,501,781	$ 924,497	$ 639,149