Accumulated other comprehensive loss reclassified into interest expense, next twelve months.

No definition available.

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- Definition

The aggregate fair value of assets needed to immediately settle the derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624258-113959

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6519104

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-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Fair value of derivative obligations to be settled		$ 22,225,000
Change in value of interest rate swaps		8,161,000	$ (9,241,000)
Not Designated as Hedging Instrument [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Aggregate notional amount		840,000,000
Unrealized gains on interest rate swaps	$ 15,084,000	39,814,000	75,760,000
Designated as Hedging Instrument [Member] \| Interest Rate Swap [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Change in value of interest rate swaps		8,161,000	$ (9,241,000)
Estimated accumulated other comprehensive income (loss) reclassified to interest expense in the next twelve months		8,227,000
Designated as Hedging Instrument [Member] \| Interest Rate Swap [Member] \| 1633 Broadway [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Aggregate notional amount		1,000,000,000
Designated as Hedging Instrument [Member] \| Interest Rate Swap March Two Thousand Sixteen [Member] \| 1633 Broadway [Member] \| Cash Flow Hedges [Member]
Derivative [Line Items]
Aggregate notional amount		$ 400,000,000