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Subsequent Events (Details) (USD $)	0 Months Ended	1 Months Ended
	Dec. 30, 2013	Feb. 28, 2015
Subsequent Event [Line Items]
Dividend declared	$ 0.085us-gaap_CommonStockDividendsPerShareDeclared
Subsequent Event [Member] | ESRT [Member]
Subsequent Event [Line Items]
Dividend declared		$ 0.085us-gaap_CommonStockDividendsPerShareDeclared / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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