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Mortgage Notes Payable: (Details) (USD $) | 12 Months Ended | 0 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 |  | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 0 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 |  | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 0 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Jan. 31, 2013 Green Acres Mall | Jan. 24, 2013 Green Acres Mall | Oct. 24, 2013 Superstition Springs Land I | Dec. 31, 2013 Arrowhead Towne Center | Dec. 31, 2012 Arrowhead Towne Center | Dec. 31, 2013 Camelback Colonnade | Dec. 31, 2012 Camelback Colonnade | Dec. 31, 2013 Chandler Fashion Center | Dec. 31, 2012 Chandler Fashion Center | Dec. 31, 2013 Chesterfield Towne Center | Dec. 31, 2012 Chesterfield Towne Center | Dec. 31, 2013 Danbury Fair Mall | Dec. 31, 2012 Danbury Fair Mall | Dec. 31, 2013 Deptford Mall One | Dec. 31, 2012 Deptford Mall One | Dec. 31, 2013 Deptford Mall Two | Dec. 31, 2012 Deptford Mall Two | Dec. 31, 2013 Eastland Mall | Dec. 31, 2012 Eastland Mall | Dec. 31, 2013 Fashion Outlets of Chicago | Dec. 31, 2012 Fashion Outlets of Chicago | Dec. 31, 2013 Fashion Outlets of Niagara Falls USA | Dec. 31, 2012 Fashion Outlets of Niagara Falls USA | Dec. 31, 2013 Fiesta Mall | Dec. 31, 2012 Fiesta Mall | Dec. 31, 2013 Flagstaff Mall | Dec. 31, 2012 Flagstaff Mall | Jun. 04, 2013 FlatIron Crossing | Dec. 31, 2013 FlatIron Crossing | Dec. 31, 2012 FlatIron Crossing | Dec. 31, 2013 Freehold Raceway Mall | Dec. 31, 2012 Freehold Raceway Mall | Dec. 31, 2013 Fresno Fashion Fair | Dec. 31, 2012 Fresno Fashion Fair | Dec. 31, 2013 Great Northern Mall | Dec. 31, 2012 Great Northern Mall | Dec. 31, 2013 Green Acres Mall Mortgage | Dec. 31, 2012 Green Acres Mall Mortgage | Jan. 03, 2013 Kings Plaza Shopping Center | Dec. 31, 2013 Kings Plaza Shopping Center | Dec. 31, 2012 Kings Plaza Shopping Center | Dec. 31, 2013 Northgate Mall | Dec. 31, 2012 Northgate Mall | Dec. 31, 2013 Oaks, The | Dec. 31, 2012 Oaks, The | Dec. 31, 2013 Pacific View | Dec. 31, 2012 Pacific View | Dec. 31, 2013 Paradise Valley Mall | Dec. 31, 2012 Paradise Valley Mall | Dec. 31, 2013 Promenade at Casa Grande | Dec. 31, 2012 Promenade at Casa Grande | Dec. 31, 2013 Salisbury, Center at | Dec. 31, 2012 Salisbury, Center at | Dec. 31, 2013 Santa Monica Place | Dec. 31, 2012 Santa Monica Place | May 30, 2013 SanTan Village Regional Center | Dec. 31, 2013 SanTan Village Regional Center | Dec. 31, 2012 SanTan Village Regional Center | Dec. 31, 2013 South Plains Mall | Dec. 31, 2012 South Plains Mall | Apr. 30, 2013 South Towne center | Dec. 31, 2013 South Towne center | Dec. 31, 2012 South Towne center | Dec. 31, 2013 Superstition Springs Center | Dec. 31, 2012 Superstition Springs Center | Jun. 04, 2013 Twenty Ninth Street | Dec. 31, 2013 Towne Mall | Dec. 31, 2012 Towne Mall | Dec. 31, 2013 Tucson La Encantada | Dec. 31, 2012 Tucson La Encantada | Dec. 31, 2013 Twenty Ninth Street | Dec. 31, 2012 Twenty Ninth Street | Dec. 31, 2013 Valley Mall | Dec. 31, 2012 Valley Mall | Dec. 31, 2013 Valley River Center | Dec. 31, 2012 Valley River Center | Dec. 31, 2013 Victor Valley, Mall | Dec. 31, 2012 Victor Valley, Mall | Apr. 30, 2013 Vintage Faire Mall | Dec. 31, 2013 Vintage Faire Mall | Dec. 31, 2012 Vintage Faire Mall | Dec. 31, 2013 Westside Pavilion | Dec. 31, 2012 Westside Pavilion | Dec. 31, 2013 Wilton Mall | Dec. 31, 2012 Wilton Mall | Sep. 30, 2009 Freehold Raceway Mall and Chandler Fashion Center
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of loan assumed on acquisition |  |  |  |  |  |  |  | $ 68,448,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party | 269,381,000 | [1] | 274,609,000 | [1] |  |  |  |  | 0 | [1] | 0 | [1] | 0 | [1],[2] | 0 | [1],[2] | 0 | [1],[3] | 0 | [1],[3] | 0 | [1],[4] | 0 | [1],[4] | 117,120,000 | [1] | 119,823,000 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1],[5] | 0 | [1],[5] | 0 | [1] | 0 | [1] | 0 | [1],[6] | 0 | [1],[6] | 0 | [1] | 0 | [1] |  | 0 | [1],[7] | 0 | [1],[7] | 0 | [1],[3] | 0 | [1],[3] | 79,391,000 | [1] | 80,601,000 | [1] | 0 | [1],[8] | 0 | [1],[8] | 0 | [1],[9] | 0 | [1],[9] |  | 0 | [1],[10] | 0 | [1],[10] | 0 | [1],[11] | 0 | [1],[11] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1],[12] | 0 | [1],[12] | 0 | [1],[13] | 0 | [1],[13] | 0 | [1],[4] | 0 | [1],[4] | 0 | [1] | 0 | [1] |  | 0 | [1],[14] | 0 | [1],[14] | 0 | [1] | 0 | [1] |  | 0 | [1],[15] | 0 | [1],[15] | 0 | [1],[16] | 0 | [1],[16] |  | 0 | [1] | 0 | [1] | 72,870,000 | [1] | 74,185,000 | [1] | 0 | [1],[17] | 0 | [1],[17] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1] | 0 | [1],[18] | 0 | [1],[18] |  |  | 0 | [1],[15] | 0 | [1],[15] | 0 | [1] | 0 | [1] | 0 | [1],[19] | 0 | [1],[19] |
Others | 4,145,809,000 | [1] | 4,162,734,000 | [1] |  |  |  |  | 236,028,000 | [1] | 243,176,000 | [1] | 49,120,000 | [1],[2] | 0 | [1],[2] | 200,000,000 | [1],[3] | 200,000,000 | [1],[3] | 0 | [1],[4] | 110,000,000 | [1],[4] | 117,120,000 | [1] | 119,823,000 | [1] | 201,622,000 | [1] | 205,000,000 | [1] | 14,551,000 | [1] | 14,800,000 | [1] | 168,000,000 | [1] | 168,000,000 | [1] | 91,383,000 | [1],[5] | 9,165,000 | [1],[5] | 124,030,000 | [1] | 126,584,000 | [1] | 0 | [1],[6] | 84,000,000 | [1],[6] | 37,000,000 | [1] | 37,000,000 | [1] |  | 268,000,000 | [1],[7] | 173,561,000 | [1],[7] | 232,900,000 | [1],[3] | 232,900,000 | [1],[3] | 79,390,000 | [1] | 80,602,000 | [1] | 35,484,000 | [1],[8] | 36,395,000 | [1],[8] | 319,850,000 | [1],[9] | 0 | [1],[9] |  | 490,548,000 | [1],[10] | 354,000,000 | [1],[10] | 64,000,000 | [1],[11] | 64,000,000 | [1],[11] | 214,239,000 | [1] | 218,119,000 | [1] | 135,835,000 | [1] | 138,367,000 | [1] | 0 | [1],[12] | 81,000,000 | [1],[12] | 0 | [1],[13] | 73,700,000 | [1],[13] | 0 | [1],[4] | 115,000,000 | [1],[4] | 235,445,000 | [1] | 240,000,000 | [1] |  | 136,629,000 | [1],[14] | 138,087,000 | [1],[14] | 99,833,000 | [1] | 101,340,000 | [1] |  | 0 | [1],[15] | 85,247,000 | [1],[15] | 68,395,000 | [1],[16] | 0 | [1],[16] |  | 22,996,000 | [1] | 23,369,000 | [1] | 0 | [1] | 0 | [1] | 0 | [1],[17] | 107,000,000 | [1],[17] | 42,155,000 | [1] | 42,891,000 | [1] | 120,000,000 | [1] | 120,000,000 | [1] | 90,000,000 | [1],[18] | 90,000,000 | [1],[18] |  |  | 99,083,000 | [1],[15] | 135,000,000 | [1],[15] | 152,173,000 | [1] | 154,608,000 | [1] | 0 | [1],[19] | 40,000,000 | [1],[19] |
Effective Interest Rate (as a percent) |  |  |  |  |  |  |  |  | 2.76% | [20] |  |  | 2.16% | [2],[20] |  |  | 3.77% | [20],[3] |  |  | 0.00% | [20],[4] |  |  | 5.53% | [20] |  |  | 3.76% | [20] |  |  | 6.46% | [20] |  |  | 5.79% | [20] |  |  | 2.96% | [20],[5] | 3.00% |  | 4.89% | [20] |  |  | 0.00% | [20],[6] |  |  | 5.03% | [20] |  |  |  | 3.90% | [20],[7] |  |  | 4.20% | [20],[3] |  |  | 6.76% | [20] |  |  | 5.19% | [20],[8] |  |  | 3.61% | [20],[9] |  |  |  | 3.67% | [10],[20] |  |  | 3.04% | [11],[20] | 3.09% |  | 4.14% | [20] |  |  | 4.08% | [20] |  |  | 0.00% | [12],[20] |  |  | 0.00% | [13],[20] |  |  | 0.00% | [20],[4] |  |  | 2.99% | [20] |  |  |  | 3.14% | [14],[20] |  |  | 6.59% | [20] |  |  |  | 0.00% | [15],[20] |  |  | 2.00% | [16],[20] |  |  |  | 4.48% | [20] |  |  | 4.23% | [20] |  |  | 0.00% | [17],[20] |  |  | 5.85% | [20] |  |  | 5.59% | [20] |  |  | 2.73% | [18],[20] | 2.12% |  | 2.91% | [14],[20] | 5.81% | [15],[20] |  |  | 4.49% | [20] |  |  | 0.00% | [19],[20] |  |  |
Debt Instrument, Default Interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on extinguishment of debt | 1,432,000 |  | 0 |  | (1,485,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,791,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (853,000) |  |  |  |  |  |  |  |  | 506,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  | 1,131,000 | [21] |  |  | 178,000 | [2],[21] |  |  | 625,000 | [21],[3] |  |  | 0 | [21],[4] |  |  | 1,538,000 | [21] |  |  | 947,000 | [21] |  |  | 101,000 | [21] |  |  | 811,000 | [21] |  |  | 203,000 | [21],[5] |  |  | 727,000 | [21] |  |  | 0 | [21],[6] |  |  | 153,000 | [21] |  |  |  | 1,393,000 | [21],[7] |  |  | 805,000 | [21],[3] |  |  | 1,104,000 | [21] |  |  | 234,000 | [21],[8] |  |  | 1,447,000 | [21],[9] |  |  |  | 2,229,000 | [10],[21] |  |  | 130,000 | [11],[21] |  |  | 1,064,000 | [21] |  |  | 668,000 | [21] |  |  | 0 | [12],[21] |  |  | 0 | [13],[21] |  |  | 0 | [21],[4] |  |  | 1,004,000 | [21] |  |  |  | 589,000 | [14],[21] |  |  | 648,000 | [21] |  |  |  | 0 | [15],[21] |  |  | 139,000 | [16],[21] |  |  |  | 117,000 | [21] |  |  | 368,000 | [21] |  |  | 0 | [17],[21] |  |  | 280,000 | [21] |  |  | 558,000 | [21] |  |  | 183,000 | [18],[21] |  |  |  |  | 586,000 | [15],[21] |  |  | 783,000 | [21] |  |  | 0 | [19],[21] |  |  |
Debt discounts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (14,000) |  | (19,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | (28,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (219,000) |  | (307,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  | 14,642,000 |  | 17,716,000 |  | 2,120,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,342,000 |  | 7,270,000 |  |  |  |  |  |  |  |  |  |  | 0 |  | 5,232,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 895,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt premiums (discounts), net | 23,766,000 |  | 29,864,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest in the loan assumed by a third party (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49.90%
Debt issued |  |  |  |  |  | 225,000,000 | 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 140,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 146,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 138,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage notes payable, maximum borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 268,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 325,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate spread over basis (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense capitalized | 10,829,000 |  | 10,703,000 |  | 11,905,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of mortgage notes payable | 4,500,177,000 |  | 4,567,658,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional ownership interest (as a percent) |  |  |  |  |  |  |  | 33.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Probable recourse amount | 77,192,000 |  | 213,466,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Guarantor obligations, current carrying value |  |  | $ 28,208,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | (1)The mortgage notes payable balances include the unamortized debt premiums (discounts). Debt premiums (discounts) represent the excess (deficiency) of the fair value of debt over (under) the principal value of debt assumed in various acquisitions and are amortized into interest expense over the remaining term of the related debt in a manner that approximates the effective interest method. The debt premiums (discounts) as of December 31, 2013 and 2012 consist of the following:Property Pledged as Collateral 2013 2012Arrowhead Towne Center $14,642 $17,716Camelback Colonnade 2,120 —Deptford Mall (14) (19)Fashion Outlets of Niagara Falls USA 6,342 7,270FlatIron Crossing — 5,232Great Northern Mall — (28)Superstition Springs Center 895 —Valley Mall (219) (307) $23,766 $29,864
[2] | On September 17, 2013, the Company obtained control of the consolidated joint venture as a result of the Camelback Colonnade Restructuring (See Note 15—Acquisitions). The loan on the property bears interest at an effective rate of 2.16% and matures on October 12, 2015.
[3] | A 49.9% interest in the loan has been assumed by a third party in connection with a co-venture arrangement (See Note 12—Co-Venture Arrangement).
[4] | On December 11, 2013, in connection with the sale of the property (See Note 16—Discontinued Operations), a third party assumed the existing loan on the property. As a result, the Company has been discharged from this non-recourse loan.
[5] | The construction loan on the property allows for borrowings up to $140,000, bears interest at LIBOR plus 2.50% and matures on March 5, 2017, including extension options. At December 31, 2013 and 2012, the total interest rate was 2.96% and 3.00%, respectively.
[6] | On September 30, 2013, the Company conveyed the property to the lender by a deed-in-lieu of foreclosure. As a result, the Company has been discharged from this non-recourse loan (See Note 16—Discontinued Operations).
[7] | On June 4, 2013, the existing loan was paid off in full, which resulted in a gain of $2,791 on the early extinguishment of debt. On November 8, 2013, the Company placed a new $268,000 loan on the property that bears interest at an effective rate of 3.90% and matures on January 5, 2021.
[8] | , the loan was in maturity default subsequent to that date. As a result, the Company accrued default interest on the loan at a rate of 4% in addition to the effective rate of interest of 5.19%. In February 2014, the Company reached an agreement with the lender to extend the loan to January 1, 2015 and waive the default interest.
[9] | On January 24, 2013, in connection with the Company's acquisition of the property (See Note 15—Acquisitions), the Company placed a new loan on the property that allowed for borrowings of up to $325,000, bears interest at an effective interest rate of 3.61% and matures on February 3, 2021. Concurrent with the acquisition, the Company borrowed $100,000 on the loan. On January 31, 2013, the Company exercised its option to borrow an additional $225,000 on the loan.
[10] | On January 3, 2013, the Company exercised its option to borrow an additional $146,000 on the loan.
[11] | The loan bears interest at LIBOR plus 2.25% and matures on March 1, 2017. At December 31, 2013 and 2012, the total interest rate was 3.04% and 3.09%, respectively.
[12] | On August 26, 2013, the loan was paid off in full.
[13] | On December 30, 2013, the loan was paid off in full.
[14] | On May 30, 2013, the consolidated joint venture replaced the existing loan on the property with a new $138,000 loan that bears interest at an effective rate of 3.14% and matures on June 1, 2019.
[15] | On April 30, 2013, the existing loan on Vintage Faire Mall was paid off in full, resulting in a loss of $853 on the early extinguishment of debt. Concurrently, the loan on South Towne Center was transferred to Vintage Faire Mall. An additional $15,200 was borrowed on the loan on Vintage Faire Mall that bears interest at an effective rate of 2.91% and matures on November 5, 2015.
[16] | On October 24, 2013, the Company purchased the 33.3% interest in Superstition Springs Center that it did not own (See Note 15—Acquisitions). In connection with the acquisition, the Company assumed the loan on the property with a fair value of $68,448 that bears interest at an effective rate of 2.00% and matures on October 28, 2016.
[17] | On November 8, 2013, the loan was paid off in full, which resulted in a loss of $506 on the early extinguishment of debt.
[18] | The loan bears interest at LIBOR plus 2.25% and matures on November 6, 2014. At December 31, 2013 and 2012, the total interest rate was 2.73% and 2.12%, respectively.
[19] | On August 1, 2013, the loan was paid off in full.
[20] | The interest rate disclosed represents the effective interest rate, including the debt premiums (discounts) and deferred finance costs.
[21] | The monthly debt service represents the payment of principal and interest.

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