Summary of Significant Accounting Policies - Deferred Financing Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Gross deferred financing costs	$ 70,549	$ 63,033
Accumulated amortization of deferred financing costs	12,250	$ 15,956
Deferred Financing Costs, Amortization Expense, Rolling Maturity [Abstract]
2016	10,525
2017	10,525
2018	10,289
2019	9,066
2020	$ 6,685

Deferred Financing Costs, Amortization Expense, Next Twelve Months

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Deferred Financing Costs, Amortization Expense, Rolling Maturity [Abstract]

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Deferred Financing Costs, Amortization Expense, Year Five

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Deferred Financing Costs, Amortization Expense, Year Four

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Deferred Financing Costs, Amortization Expense, Year Three

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Deferred Financing Costs, Amortization Expense, Year Two

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For an unclassified balance sheet, the accumulated amortization, as of the reporting date, representing the periodic charge to earnings of deferred costs which are associated with debt obligations existing as of the end of the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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For an unclassified balance sheet, the amount as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. Such amount is before the consideration of accumulated amortization.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

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