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EQUITY AND NONCONTROLLING INTEREST (Details) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 05, 2016 USD ($) $ / shares shares | Jan. 15, 2015 | Sep. 30, 2016 USD ($) $ / shares shares | Sep. 30, 2016 $ / shares shares | Sep. 30, 2015 $ / shares | Sep. 30, 2016 USD ($) $ / shares shares | Sep. 30, 2015 USD ($) $ / shares | Dec. 31, 2015 $ / shares | Aug. 08, 2016 USD ($) $ / shares
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.01 | $ 0.01 |  | $ 0.01 |  | $ 0.01 |
Proceeds from issuance of common shares | $ |  |  |  |  |  | $ (5,020,000) | $ 0 |  |
Distributions to redeemable NCI (in dollars per unit) | $ / shares |  |  |  | $ 0.20 | $ 0.20 | $ 0.60 | $ 0.60 |  |
Common limited partnership units issued (in shares) | shares |  |  | 5,700,000 | 5,700,000 |  | 5,700,000 |  |  |
Noncontrolling interest percentage |  |  |  | 6.00% |  | 6.00% |  |  |
Conversion rate to common shares |  |  |  |  |  | 1 |  |  |
ATM |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 0.01
Aggregate shares subscription price | $ |  |  |  |  |  |  |  |  | $ 250,000,000
Common shares issued during period (in shares) | shares |  |  | 172,403 |  |  |  |  |  |
Weighted average price of shares issued (in dollars per share) | $ / shares |  |  | $ 28.58 |  |  |  |  |  |
Proceeds from issuance of common shares | $ |  |  | $ (4,900,000) |  |  |  |  |  |
Commissions paid to distribution agencies | $ |  |  | $ 100,000 |  |  |  |  |  |
ATM | Subsequent Event |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Common shares issued during period (in shares) | shares | 134,939 |  |  |  |  |  |  |  |
Weighted average price of shares issued (in dollars per share) | $ / shares | $ 28.30 |  |  |  |  |  |  |  |
Proceeds from issuance of common shares | $ | $ (3,800,000) |  |  |  |  |  |  |  |
LTIP Units |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  | 2 years |  |  |
Vornado |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Noncontrolling interest percentage |  | 5.40% |  |  |  |  |  | 94.00% |
Noncontrolling Interest |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Noncontrolling interest percentage |  | 5.00% |  |  |  |  |  |  |

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- Definition Face amount or stated value per share of common stock. + References 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 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Monetary value of common stock allocated to investors to buy shares of a new issue of common stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6403732&loc=d3e21300-112643 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Fees and commissions from underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, and other related consulting fees. Include fees and commissions from securities brokerage activities, from the sale and servicing of mutual funds, from the purchase and sale of securities and money market instruments where the bank is acting as agent for other banks or customers, and from the lending of securities owned by the bank or by bank customers (exclusive of trading revenue). Also includes the bank's proportionate share of the income or loss before extraordinary items and other adjustments from its investments in: unconsolidated subsidiaries, associated companies and corporate joint ventures, unincorporated joint ventures, general partnerships, and limited partnerships over which the bank exercises significant influence and that are principally engaged in investment banking, advisory, brokerage, or securities underwriting activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(b)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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