XML 46 R62.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Property: (Details 2) (USD $) In Thousands, unless otherwise specified | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended |  | 0 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 26, 2012 | Jun. 03, 2011 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Sep. 17, 2013 Camelback Colonnade | Dec. 31, 2013 Camelback Colonnade | Dec. 31, 2013 Superstition Springs Center | Feb. 28, 2011 Desert Sky Mall | Dec. 31, 2011 Desert Sky Mall | Oct. 24, 2013 Superstition Springs Land I | Oct. 03, 2012 FlatIron Crossing | Dec. 31, 2013 FlatIron Crossing | Dec. 31, 2012 FlatIron Crossing | Jun. 03, 2011 Superstition Springs Land | Dec. 31, 2011 Superstition Springs Land | Oct. 26, 2012 Arrowhead Towne Center | Dec. 31, 2013 Arrowhead Towne Center | Dec. 31, 2013 Chandler Village Center, Chandler Festival, Chandler Gateway and NorthPark Center
Purchase of interest in property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on remeasurement | $ 115,729 | $ 1,734 |  |  |  | $ 36,341 | $ 36,341 | $ 14,864 | $ 1,868 | $ 1,868 | $ 14,864 | $ 84,227 | $ 84,227 |  | $ 1,734 | $ 1,734 | $ 115,729 | $ 115,729 |
Ownership percentage purchased |  |  |  |  |  |  |  |  | 50.00% | 50.00% | 33.30% | 75.00% |  | 75.00% | 50.00% |  | 33.30% |  |
Gain (Loss) on sale of assets |  |  | 5,390 | (390) | (423) |  |  |  |  |  |  |  |  |  |  |  |  |  | 48,484
Write off of development cost |  |  | (1,250) | 19,360 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charge |  |  | $ (82,197) |  | $ (25,216) |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition In a business combination achieved in stages, this element represents the additional percentage of equity interests acquired. + References No definition available. + Details
Name: | mac_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercentage
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the development cost written off during the period. + References No definition available. + Details
Name: | mac_WriteOffOfDevelopmentCost
Namespace Prefix: | mac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition In a business combination achieved in stages, this element represents the amount of net gain (loss) recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
Name: | us-gaap_GainLossOnDispositionOfAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: 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=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 225 -Section 45 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28367520&loc=d3e92212-112881 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Impairment -URI http://asc.fasb.org/extlink&oid=6515133 + Details
Name: | us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration