2.4.0.81180 - Disclosure - Subsequent Eventstruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001492869duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_SubsequentEventsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Subsequent Events2false 2us-gaap_SubsequentEventsTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;"> 18.  Subsequent Events   In July 2013, SL Green sold and settled approximately 165,718 shares of its common stock through the ATM Program for aggregate gross proceeds of $15.2 million ($14.9 million of net proceeds after related expenses). The net proceeds from these offerings were contributed to us in exchange for 165,718 common partnership units. As of the date of this filing, $21.5 million of common stock remained available for issuance under the ATM Program.   The sale of 333 West 34th closed on August 9, 2013. See Note 4, “Property Dispositions and Assets Held for Sale.”   In August 2013, we entered into a contract to acquire a mixed-use residential and commercial property located at 315 West 33rd Street, New York, New York for $386.0 million. This transaction is expected to be completed in 2013, subject to customary closing conditions.</div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.No definition available.false0Subsequent EventsfalseSubsequent EventsUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.slgreenoperatingpartnership.com/role/DisclosureSubsequentEvents12