Summary of Significant Accounting Policies Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014 segment	Mar. 31, 2013
Accounting Policies [Line Items]
Deferred revenue	$ 5.3
Advertising expense	$ 2.3	$ 0.3
Number of reportable segments	2
Predecessor [Member] \| State and Local Jurisdiction [Member] \| New York City Unincorporated Business Tax [Member]
Accounting Policies [Line Items]
Number of limited liability companies	2
Minimum [Member]
Accounting Policies [Line Items]
Percent of observatory revenue in quarter one over a ten year period	16.00%
Percent of observatory revenue in quarter two over a ten year period	26.00%
Percent of observatory revenue in quarter three over a ten year period	31.00%
Percent of observatory revenue in quarter four over a ten year period	23.00%
Maximum [Member]
Accounting Policies [Line Items]
Percent of observatory revenue in quarter one over a ten year period	18.00%
Percent of observatory revenue in quarter two over a ten year period	28.00%
Percent of observatory revenue in quarter three over a ten year period	33.00%
Percent of observatory revenue in quarter four over a ten year period	25.00%
Building and Building Improvements [Member]
Accounting Policies [Line Items]
Useful life	39 years
Corporate Equipment [Member] \| Minimum [Member]
Accounting Policies [Line Items]
Useful life	3 years
Corporate Equipment [Member] \| Maximum [Member]
Accounting Policies [Line Items]
Useful life	7 years

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Historical Revenue Trend, Observatory Revenue, in Quarter Four Over Ten Year Period, Percent

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- Definition

Historical Revenue Trend, Observatory Revenue, in Quarter One Over Ten Year Period, Percent

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- Definition

Historical Revenue Trend, Observatory Revenue, in Quarter Three Over Ten Year Period, Percent

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- Definition

Historical Revenue Trend, Observatory Revenue, in Quarter Two Over Ten Year Period, Percent

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- Definition

Number of Limited Liability Companies

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 720

-SubTopic 35

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

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- Definition

Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response)

-URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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