Derivative Instruments and Hedging Activities - Summary of Outstanding Interest Rate Swaps (Parenthetical) (Details)	9 Months Ended
Sep. 30, 2016
Not Designated as Hedging Instrument [Member] \| Interest Rate Swap [Member] \| 900 Third Avenue [Member]
Derivative [Line Items]
Derivative instrument, repayment termination date	Oct. 06, 2016

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.

No definition available.

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