XML 55 R44.htm IDEA: XBRL DOCUMENT v2.4.1.9

Acquisitions Acquisition Income from Acquisition Date (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2014
Business Combinations [Abstract]
Total revenues	$ 76,989us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	$ 392,615us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
Operating expenses	27,562us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual		91,387us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
Operating income	48,538esrt_BusinessCombinationProFormaInformationOperatingExpensesofAcquireesinceAcquisitionDateActual	289,433esrt_BusinessCombinationProFormaInformationOperatingExpensesofAcquireesinceAcquisitionDateActual
Net income	$ 28,451esrt_BusinessCombinationProFormaInformationOperatingIncomeofAcquireesinceAcquisitionDateActual	$ 103,182esrt_BusinessCombinationProFormaInformationOperatingIncomeofAcquireesinceAcquisitionDateActual

X

- Definition

Business Combination, Pro Forma Information, Operating Expenses of Acquiree since Acquisition Date, Actual

+ References

No definition available.

+ Details

Name:	esrt_BusinessCombinationProFormaInformationOperatingExpensesofAcquireesinceAcquisitionDateActual
Namespace Prefix:	esrt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Business Combination, Pro Forma Information, Operating Income of Acquiree since Acquisition Date, Actual

+ References

No definition available.

+ Details

Name:	esrt_BusinessCombinationProFormaInformationOperatingIncomeofAcquireesinceAcquisitionDateActual
Namespace Prefix:	esrt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_BusinessCombinationsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration