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MORTGAGES AND OTHER NOTES PAYABLE Summary Mortgage Notes Payable (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |  |  | 12 Months Ended |  |  | 12 Months Ended |  |  |  |  |  |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  |  | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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Dec. 31, 2013 properties | Dec. 31, 2012 | Dec. 31, 2013 Variable Interest Rate [Member] | Dec. 31, 2012 Variable Interest Rate [Member] | Dec. 31, 2013 Mortgages [Member] | Dec. 31, 2013 Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Secured Credit Facilities - Variable-Rate [Member] Variable Interest Rate [Member] Fund IV [Member] | Dec. 31, 2012 Secured Credit Facilities - Variable-Rate [Member] Variable Interest Rate [Member] Fund IV [Member] | Dec. 31, 2013 Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Interest Rate Swap [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Interest Rate Swap [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Interest Rate Swap [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Interest Rate Swap [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 28 Jericho Turnpike [Member] Mortgages [Member] | Dec. 31, 2013 28 Jericho Turnpike [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 28 Jericho Turnpike [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Norstrand Avenue [Member] Mortgages [Member] | Dec. 31, 2013 Norstrand Avenue [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Norstrand Avenue [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 161st St. [Member] Mortgages [Member] | Dec. 31, 2013 City Point Refinance, LIBOR Plus 5% [Member] Mortgages [Member] | Apr. 30, 2013 City Point Refinance, LIBOR Plus 5% [Member] Mortgages [Member] | Mar. 31, 2013 City Point Refinance, LIBOR Plus 5% [Member] Mortgages [Member] | Dec. 31, 2013 60 Orange Street [Member] Mortgages [Member] | Dec. 31, 2013 60 Orange Street [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 60 Orange Street [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 210 Bowery LLC [Member] Mortgages [Member] | Dec. 31, 2013 210 Bowery LLC [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 210 Bowery LLC [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Cortlandt Towne Center [Member] Mortgages [Member] | Aug. 31, 2013 Cortlandt Towne Center [Member] Mortgages [Member] | Jul. 31, 2013 Cortlandt Towne Center [Member] Mortgages [Member] | Dec. 31, 2013 Cortlandt Towne Center [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Cortlandt Towne Center [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Village Commons Shopping Center [Member] Mortgages [Member] | Dec. 31, 2013 Village Commons Shopping Center [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Village Commons Shopping Center [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Branch Plaza [Member] Mortgages [Member] | Dec. 31, 2013 West Diversity [Member] Mortgages [Member] | Dec. 31, 2013 West Diversity [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 West Diversity [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Fordham Place [Member] Mortgages [Member] | Dec. 31, 2013 Pelham Manor [Member] Mortgages [Member] | Dec. 31, 2013 Lincoln Park Centre LLC [Member] Mortgages [Member] | Dec. 31, 2013 Lincoln Park Centre LLC [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Lincoln Park Centre LLC [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Lincoln Park Centre LLC [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Lincoln Park Centre LLC [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 A and P Shopping Center [Member] Mortgages [Member] | Dec. 31, 2013 City Point, 4.75% [Member] Mortgages [Member] | Dec. 31, 2013 City Point, 4.75% [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 City Point, 4.75% [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 161st St., LIBOR Plus 5.67% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 161st St., LIBOR Plus 5.67% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Liberty Avenue [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Liberty Avenue [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Branch Shopping Plaza [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Branch Shopping Plaza [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 640 Broadway [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 640 Broadway [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Heritage Shops [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Heritage Shops [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 City Point, LIBOR Plus 3.67% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 City Point, LIBOR Plus 3.67% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 City Point, LIBOR Plus 5.17% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 City Point, LIBOR Plus 5.17% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 New Hyde Park Shopping Center [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 New Hyde Park Shopping Center [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Term Loan [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 Term Loan [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 161st St., LIBOR Plus 2.67% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 161st St., LIBOR Plus 2.67% [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 4401 White Plains [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2012 4401 White Plains [Member] Mortgage Notes Payable - Variable-Rate [Member] Variable Interest Rate [Member] | Dec. 31, 2013 Clark Diversey [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Clark Diversey [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 New Louden Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 New Louden Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 City Point [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 City Point [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Crescent Plaza [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Crescent Plaza [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Pacesetter Park Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Pacesetter Park Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Elmwood Park Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Elmwood Park Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Chicago Street Retail Portfolio [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Chicago Street Retail Portfolio [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 The Gateway Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 The Gateway Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 River Street [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 River Street [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Brandywine Town Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Brandywine Town Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Walnut Hill Plaza [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Walnut Hill Plaza [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Rhode Island Place Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Rhode Island Place Shopping Center [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 239 Greenwich Avenue [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 239 Greenwich Avenue [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 639 West Diversey [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 639 West Diversey [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 Merrillville Plaza [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 Merrillville Plaza [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 216th Street [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 216th Street [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2013 City Point, 1% [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member] | Dec. 31, 2012 City Point, 1% [Member] Mortgage Notes Payable - Fixed Rate [Member] Fixed Interest Rate [Member]
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgages Payable | $ 1,037,700 | $ 612,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Properties Collateralized | 32 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate, minimum | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate, maximum | 7.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Long-term Debt |  |  |  |  | 324,233 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,500 |  |  | 13,000 |  |  | 29,500 | 20,000 | [1] |  |  | 8,600 |  |  | 4,600 |  |  | 12,033 | [2] |  |  |  |  | 0 |  |  | 0 | 0 |  |  |  | [3] | 0 | [3] | 23,000 |  |  |  |  | 0 | [3] | 197,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  | 207,203 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  | 0 |  |  | 28,900 | 0 | [1] |  |  | 0 |  |  | 0 |  |  | 0 | [2] |  |  |  |  | 9,084 |  |  | 12,311 | 14,905 |  |  | 81,422 | [3] | 33,555 | [3] | 19,026 |  |  |  |  | 8,000 | [3] | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgages payable | (1,039,617) | (612,251) | (224,041) | (186,056) |  | (334,951) | (225,863) | (68,750) | [4] | (93,050) | [4] | (813,708) | (426,302) | (179,660) | [5] | (132,857) | [5] | (179,660) | [5] | (132,857) | [5] |  | (16,164) | 0 |  | (12,567) | 0 |  |  |  | (20,000) | (50,000) |  | (8,457) | 0 |  | (4,600) | 0 |  |  | (85,000) | (73,000) | (84,745) | (73,499) |  | 0 | (9,192) |  |  | 0 | (15,273) |  |  |  |  |  | (23,000) | 0 | 0 | (19,478) |  |  |  | (197,000) | 0 | 0 | (28,900) | (9,090) | (9,208) | 0 | (12,526) | (22,750) | (22,750) | (20,871) | (21,000) | (20,650) | (20,650) | (20,000) | 0 | (6,294) | (6,484) | (50,000) | 0 | (29,500) | 0 | (6,263) | (6,381) | (4,192) | (4,345) | (13,369) | (13,634) | (20,000) | (20,000) | (16,747) | (17,025) | (11,530) | (11,742) | (32,744) | (33,258) | (15,558) | (15,835) | (19,746) | (20,036) | (10,904) | (11,128) | (166,200) | 0 | (22,910) | (23,194) | (16,208) | (16,426) | (26,000) | (26,000) | (4,341) | (4,431) | (25,837) | (26,151) | (25,500) | (25,500) | (5,262) | (5,262)
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis |  |  |  |  |  |  |  | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR | LIBOR |  | LIBOR | LIBOR |  | LIBOR | LIBOR |  |  |  | LIBOR | LIBOR |  | LIBOR | LIBOR |  | LIBOR |  |  |  | LIBOR |  |  | LIBOR |  |  |  | LIBOR |  |  |  |  |  | LIBOR | LIBOR |  |  |  |  |  |  |  |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  | 1.65% |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.90% | 1.90% |  | 2.65% | 2.65% |  | 2.50% | 5.00% |  |  |  | 1.90% | 1.75% |  | 1.90% | 1.95% |  | 2.25% |  |  |  | 1.65% |  |  | 1.40% |  |  |  | 1.90% |  |  |  |  |  | 1.45% | 1.45% |  |  |  |  |  |  |  |  | 5.50% |  | 3.25% |  | 2.25% |  | 2.95% |  | 2.25% |  | 3.50% |  | 5.00% |  | 2.25% |  | 1.40% |  | 2.50% |  | 1.90% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate at December 31, 2011 |  |  |  |  |  |  |  | 1.82% |  |  |  |  |  |  |  |  |  | 2.15% | [5] |  |  |  | 2.07% |  |  | 2.82% |  |  |  |  |  |  |  | 1.92% |  |  | 2.12% |  |  |  |  |  | 1.82% |  |  | 1.57% |  |  |  | 2.07% |  |  |  |  |  |  | 1.62% |  | 5.85% |  |  |  |  | 4.75% |  | 5.67% |  | 3.42% |  | 2.42% |  | 3.12% |  | 2.42% |  | 3.67% |  | 5.17% |  | 2.42% |  | 1.57% |  | 2.67% |  | 2.07% |  | 6.35% |  | 5.64% |  | 7.25% |  | 4.98% |  | 5.12% |  | 5.53% |  | 5.61% |  | 5.44% |  | 5.29% |  | 5.99% |  | 6.06% |  | 6.35% |  | 5.42% |  | 6.65% |  | 5.88% |  | 5.80% |  | 1.00% |
Unamortized premium | $ 1,868 | $ (107) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Loan was amended from $50.0 million to $20.0 million.
[2] | Loan was amended from $73.0 million to $85.0 million.
[3] | Loan was paid off in connection with the sale of the property.
[4] | The Fund IV revolving subscription line of credit is secured by unfunded investor capital commitments.
[5] | Represents the amount of the Company’s variable-rate debt that has been fixed through certain cash flow hedge transactions (Note 10).

X
- Definition Number of Properties Collateralized + References No definition available. + Details
Name: | akr_NumberOfPropertiesCollateralized
Namespace Prefix: | akr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition When presenting a range of interest rates, the highest effective rate for funds borrowed under the debt agreement as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition When presenting a range of interest rates, the lowest effective rate for funds borrowed under the debt agreement as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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