CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Comprehensive income:
Net income	$ 190,224us-gaap_ProfitLoss	$ 82,732us-gaap_ProfitLoss
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) arising during the period	(11,788)	(11,952)
Losses reclassified into earnings from other comprehensive income	4,338	4,129
Other comprehensive (loss) income – foreign currency:
Currency translation adjustments arising during the period	(420)	91
Other comprehensive (loss)	(7,870)	(7,732)
Comprehensive income	182,354	75,000
Comprehensive (income) attributable to Noncontrolling Interests – Partially Owned Properties	(7,402)	(3,302)
Comprehensive income attributable to controlling interests	174,952us-gaap_ComprehensiveIncomeNetOfTax	71,698us-gaap_ComprehensiveIncomeNetOfTax
OPERATING PARTNERSHIP
Comprehensive income:
Net income	190,224	82,732
Other comprehensive (loss) income – derivative instruments:
Unrealized holding (losses) arising during the period	(11,788)	(11,952)
Losses reclassified into earnings from other comprehensive income	4,338	4,129
Other comprehensive (loss) income – foreign currency:
Currency translation adjustments arising during the period	(420)	91
Other comprehensive (loss)	(7,870)	(7,732)
Comprehensive income	182,354	75,000
Comprehensive (income) attributable to Noncontrolling Interests – Partially Owned Properties	(643)	(504)
Comprehensive income attributable to controlling interests	$ 181,711	$ 74,496

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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