XML 76 R61.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Mortgage Notes Payable: (Details) - USD ($) |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 14, 2016 | Jan. 06, 2016 | Dec. 01, 2015 | Oct. 30, 2015 | Oct. 05, 2015 | Jul. 31, 2015 | Jun. 30, 2015 | Mar. 03, 2015 | Mar. 02, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | May. 12, 2015 | Feb. 19, 2015
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | $ 181,318,000 | $ 289,039,000 |  |  |
Others |  |  |  |  |  |  |  |  |  | 4,443,294,000 | 5,115,482,000 |  |  |
Debt premiums (discounts), net |  |  |  |  |  |  |  |  |  | 18,408,000 | 56,921,000 |  |  |
(Gain) loss on early extinguishment of debt, net |  |  |  |  |  |  |  |  |  | (16,066,000) | 526,000 | $ (1,432,000) |  |
Probable recourse amount |  |  |  |  |  |  |  |  |  | 13,500,000 | 73,165,000 |  |  |
Interest expense capitalized |  |  |  |  |  |  |  |  |  | 13,052,000 | 12,559,000 | $ 10,829,000 |  |
Fair value of mortgage notes payable |  |  |  |  |  |  |  |  |  | $ 4,628,781,000 | 5,455,453,000 |  |  |
Chandler Fashion Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest in the loan assumed by a third party (as a percent) |  |  |  |  |  |  |  |  |  | 49.90% |  |  |  |
Arrowhead Towne Center Mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | $ 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 221,194,000 | 228,703,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 2.76% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,131,000 |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  |  | 8,494,000 | 11,568,000 |  |  |
Chandler Fashion Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 200,000,000 | 200,000,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.77% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 625,000 |  |  |  |
Danbury Fair Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 111,248,000 | 114,265,000 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 111,249,000 | 114,264,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 5.53% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,538,000 |  |  |  |
Deptford Mall One |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 193,861,000 | 197,815,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.76% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 947,000 |  |  |  |
Debt discounts |  |  |  |  |  |  |  |  |  | (3,000) | (8,000) |  |  |
Deptford Mall Two |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 14,001,000 | 14,285,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 6.46% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 101,000 |  |  |  |
Eastland Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 0 | 168,000,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
Fashion Outlets of Chicago |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  | $ 200,000,000 |  | $ 200,000,000 | $ 119,329,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 1.84% | 2.97% |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 291,000 |  |  |  |
Reference rate for variable interest rate |  |  |  |  |  |  |  | LIBOR |  |  |  |  |  |
Interest rate spread over basis (as a percent) |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |
Fashion Outlets of Niagara Falls USA |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | $ 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 118,615,000 | 121,376,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.89% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 727,000 |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  |  | 4,486,000 | 5,414,000 |  |  |
Flagstaff Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 37,000,000 | 37,000,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 8.97% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 153,000 |  |  |  |
FlatIron Crossing |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 254,733,000 | 261,494,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.90% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,393,000 |  |  |  |
Freehold Raceway Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 225,094,000 | 229,244,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.20% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,132,000 |  |  |  |
Great Northern Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 0 | 34,494,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
(Gain) loss on early extinguishment of debt, net |  |  |  |  |  |  | $ 1,627,000 |  |  |  |  |  |  |
Green Acres Mall Mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 306,954,000 | 313,514,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.61% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,447,000 |  |  |  |
Kings Plaza Shopping Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 470,627,000 | 480,761,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.67% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 2,229,000 |  |  |  |
Lakewood Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 0 | 253,708,000 |  | $ 410,000,000 |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  |  | 0 | 3,708,000 |  |  |
Interest in the loan assumed by a third party (as a percent) |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |
(Gain) loss on early extinguishment of debt, net |  |  |  |  |  |  |  |  | $ (2,245,000) |  |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 3.46% |
Los Cerritos Center Mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 103,274,000 |  |  |
Others |  |  |  | $ 525,000,000 |  |  |  |  |  | $ 0 | 103,274,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  |  | 0 | 17,965,000 |  |  |
(Gain) loss on early extinguishment of debt, net |  |  |  | $ 859,000 |  |  |  |  |  |  |  |  |  |
Interest rate on debt (as a percent) |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |
Northgate Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 64,000,000 | $ 64,000,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.30% | 3.05% |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 143,000 |  |  |  |
Reference rate for variable interest rate |  |  |  |  |  |  |  |  |  | LIBOR |  |  |  |
Interest rate spread over basis (as a percent) |  |  |  |  |  |  |  |  |  | 2.25% |  |  |  |
Oaks, The |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 205,986,000 | 210,197,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.14% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,064,000 |  |  |  |
Pacific View |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 130,458,000 | 133,200,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.08% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 668,000 |  |  |  |
Queens Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 600,000,000 | 600,000,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.49% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,744,000 |  |  |  |
Santa Monica Place |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 225,089,000 | 230,344,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 2.99% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 1,004,000 |  |  |  |
SanTan Village Regional Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 130,898,000 | 133,807,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 3.14% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 589,000 |  |  |  |
Stonewood Center Mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 105,494,000 | 111,297,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 1.80% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 640,000 |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  |  | 5,168,000 | 7,980,000 |  |  |
Superstition Springs Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 67,763,000 | $ 68,079,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 2.17% | 1.98% |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 149,000 |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  |  | $ 263,000 | $ 579,000 |  |  |
Interest rate spread over basis (as a percent) |  |  |  |  |  |  |  |  |  | 2.30% |  |  |  |
Towne Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | $ 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 22,200,000 | 22,607,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.48% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 117,000 |  |  |  |
Tucson La Encantada |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 70,070,000 | 71,500,000 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 0 | 0 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.23% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 368,000 |  |  |  |
Valley Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 0 | 41,368,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
Debt discounts |  |  |  |  |  |  |  |  |  | 0 | (132,000) |  |  |
(Gain) loss on early extinguishment of debt, net |  |  | $ 52,000 |  |  |  |  |  |  |  |  |  |  |
Valley River Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 0 | 120,000,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
(Gain) loss on early extinguishment of debt, net |  |  |  |  |  | $ 9,000 |  |  |  |  |  |  |  |
Victor Valley, Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 115,000,000 | 115,000,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 380,000 |  |  |  |
Vintage Faire Mall |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  | $ 280,000,000
Others |  |  |  |  |  |  |  |  |  | 276,117,000 | 0 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.55%
Monthly debt service |  |  |  |  |  |  |  |  |  | 1,255,000 |  |  |  |
Washington Square |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  | $ 550,000,000 |  |  |  |  | $ 0 | 238,696,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
Debt premiums |  |  |  |  |  |  |  |  |  | 0 | 9,847,000 |  |  |
Interest in the loan assumed by a third party (as a percent) |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |
(Gain) loss on early extinguishment of debt, net |  |  |  |  | $ (2,367,000) |  |  |  |  |  |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 3.65% |  |  |  |  |  |  |  |  |
Westside Pavilion |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of mortgage notes, related party |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |
Others |  |  |  |  |  |  |  |  |  | $ 146,961,000 | $ 149,626,000 |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.49% |  |  |  |
Monthly debt service |  |  |  |  |  |  |  |  |  | $ 783,000 |  |  |  |
Subsequent Event | Arrowhead Towne Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  | 4.05% |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Depford Mall, FlatIron Crossing, Twenty Ninth Street [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest sold | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Arrowhead Towne Center Mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt |  | $ 400,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Interest in the loan assumed by a third party (as a percent) |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |
Lakewood Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest sold |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |
Los Cerritos Center |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest sold |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |
Los Cerritos Center Mortgage | Los Cerritos Center Mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest in the loan assumed by a third party (as a percent) |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |
Arrowhead Towne Center | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans payable on real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest in the loan assumed by a third party (as a percent) |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting that was sold by the entity during the period. + References No definition available. + Details
Name: | mac_EquityMethodInvestmentsPercentageOfOwnershipInterestSold
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of mortgage notes payable which could become recourse to the entity. + References No definition available. + Details
Name: | mac_MortgageNotesPayableProbableRecourseAmount
Namespace Prefix: | mac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Portion of the loan assumed by a third party. + References No definition available. + Details
Name: | mac_PercentageOfLoanAssumedByThirdParty
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations such as mortgage loans. + References No definition available. + Details
Name: | mac_SecuredDebtNonrelatedParty
Namespace Prefix: | mac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 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
Name: | us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: 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=34725769&loc=d3e28878-108400 Reference 2: 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 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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 + Details
Name: | us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the required periodic payments including both interest and principal payments. + 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of debt discount 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=34725769&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of debt discount (net 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 4 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28567-108399 Reference 2: 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 3: 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=34725769&loc=d3e28878-108400 Reference 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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=34725769&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedPremium
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
Name: | us-gaap_InterestCostsCapitalized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value portion of notes payable. + 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 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_NotesPayableFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount for notes payable (written promise to pay), due to related parties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.17) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
Name: | us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_ChandlerFashionCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_ArrowheadTowneCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_ChandlerFashionCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_DanburyFairMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_DeptfordMallMortgageOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_DeptfordMallMortgageTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_EastlandMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_FashionOutletsOfChicagoMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_FashionOutletsAtNiagaraMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_FlagstaffMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_FlatIronCrossingMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_FreeholdRacewayMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_GreatNorthernMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_GreenAcresMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_KingsPlazaMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_LakewoodCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_LosCerritosCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_TheMallAtNorthgateMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_TheOaksOneMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_PacificViewMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_QueensCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_SantaMonicaPlaceMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_SanTanVillageRegionalCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_StonewoodCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_SuperstitionSpringsCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_TowneMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_TucsonLaEncantadaMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_ValleyMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_ValleyRiverCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_MallOfVictorValleyMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_VintageFaireMallMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_WashingtonSquareMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mac_WestsidePavilionMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=mac_ArrowheadTowneCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=mac_DepfordMallFlatIronCrossingTwentyNinthStreetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mac_LakewoodCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mac_LosCerritosCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mac_LosCerritosCenterMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mac_ArrowheadTowneCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |