XML 34 R76.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Stockholders' Equity: (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended |  | 1 Months Ended
--- | --- | --- | --- | --- | --- | ---
Apr. 30, 2010 | Mar. 31, 2010 | Dec. 31, 2009 | Oct. 31, 2009 | Sep. 30, 2009 Y | Jun. 30, 2009 | Dec. 31, 2010 | Dec. 31, 2009 | May 31, 2010 FlatIron Crossing | Sep. 30, 2009 FlatIron Crossing | Dec. 31, 2011 FlatIron Crossing | Sep. 03, 2009 FlatIron Crossing warrant | Sep. 30, 2009 Freehold Raceway Mall and Chandler Fashion Center D
Stock Dividends: |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares issued in connection with quarterly dividend |  | 1,449,542 | 1,817,951 |  | 1,658,023 | 2,236,954 |  |  |  |  |  |  |
Dividend declared (in dollars per share) |  | $ 0.60 | $ 0.60 |  | $ 0.60 | $ 0.60 |  |  |  |  |  |  |
Percentage of cash component in aggregate dividend declared |  | 10.00% | 10.00% |  | 10.00% | 10.00% |  |  |  |  |  |  |
Cash component of dividend declared (in dollars per share) |  | $ 0.06 | $ 0.06 |  | $ 0.06 | $ 0.06 |  |  |  |  |  |  |
Threshold percentage of cash election to prorate cash portion of dividend payment (as a percent) |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Minimum cash dividend paid in case of cash election (in dollars per share) |  | $ 0.06 |  |  |  |  |  |  |  |  |  |  |
Percentage of cash portion of dividend in case of non election |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Percentage of share portion of dividend in case of non election |  | 90.00% |  |  |  |  |  |  |  |  |  |  |
Weighted average common stock trading price used to calculate shares issued as dividends (in dollars per share) |  | $ 38.53 | $ 30.16 |  | $ 28.51 | $ 19.9927 |  |  |  |  |  |  |
Warrants: |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants issued in connection with the sale of ownership interest |  |  |  |  |  |  |  |  |  |  |  | 3 |
Sale of ownership interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 75.00% |
Aggregate number of common shares available for purchase under warrants |  |  |  |  |  |  |  |  |  |  |  | 1,250,000 | 935,358
Value of stock warrants |  |  |  |  |  |  |  | $ 14,503 |  | $ 8,068 |  |  | $ 6,496
Exercise of stock warrants |  |  |  |  |  |  |  | (14,503) | 17,589 |  | 1,278 |  |
Duration of warrants issued (in years) |  |  |  |  | 3 |  |  |  |  |  |  |  |
Expiration period of exercisable stock warrants following refinancing or repayment of related loans (in days) |  |  |  |  |  |  |  |  |  |  |  |  | 30
Exercise price of stock warrants (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 46.68
Number of shares of warrants exercised |  |  |  |  |  |  |  |  |  |  | 311,786 |  |
Stock Offering: |  |  |  |  |  |  |  |  |  |  |  |  |
Number of newly issued shares | 30,000,000 |  |  | 12,000,000 |  |  |  |  |  |  |  |  |
Additional stock offering (in shares) | 1,000,000 |  |  | 1,800,000 |  |  |  |  |  |  |  |  |
Total stock offering (in shares) | 31,000,000 |  |  | 13,800,000 |  |  |  |  |  |  |  |  |
Initial purchase price of common stock per share (in dollars per share) | $ 41.00 |  |  | $ 29.00 |  |  |  |  |  |  |  |  |
Net proceeds of stock offering | $ 1,220,829 |  |  | $ 383,450 |  |  | $ 1,220,829 | $ 383,450 |  |  |  |  |

X
- Definition The aggregate number of securities that a class of warrants or rights outstanding gives the holder(s) the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date. + References No definition available. + Details
Name: | mac_ClassOfWarrantOrRightAggregateNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | mac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of shares of warrants exercised. + References No definition available. + Details
Name: | mac_ClassOfWarrantOrRightNetIssueExerciseOfWarrants
Namespace Prefix: | mac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Threshold percentage of cash elected by stockholders in the aggregate on the common stock dividend, above which the cash portion was prorated. + References No definition available. + Details
Name: | mac_CommonStockCashDividendElectedPercentageThresholdForProratedPayment
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of the cash portion of the dividend paid in the case of stockholders not making an election to receive the dividend all in cash or all in shares. + References No definition available. + Details
Name: | mac_CommonStockDividendsCashPortionPercentageInCaseOfNonElection
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of the cash component of the aggregate dividend declared (not including cash paid in lieu of fractional shares). + References No definition available. + Details
Name: | mac_CommonStockDividendsDeclaredInCashPercentage
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash portion of the aggregate dividends declared during the period for each share of common stock outstanding. + References No definition available. + Details
Name: | mac_CommonStockDividendsPerShareCashDeclared
Namespace Prefix: | mac_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum cash paid for each share of common stock outstanding to stockholders who elected to receive the dividend in cash. + References No definition available. + Details
Name: | mac_CommonStockDividendsPerShareCashPaidMinimum
Namespace Prefix: | mac_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of the shares portion of the dividend paid in the case of stockholders not making an election to receive the dividend all in cash or all in shares. + References No definition available. + Details
Name: | mac_CommonStockDividendsSharesPortionPercentageInCaseOfNonElection
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average trading price of the entity's common stock used as the basis to calculate the number of shares to be issued as dividends. + References No definition available. + Details
Name: | mac_CommonStockWeightedAverageTradingPriceUsedInCalculationOfDividend
Namespace Prefix: | mac_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period during which rights are exercisable under the warrant. + References No definition available. + Details
Name: | mac_DurationOfWarrantIssued
Namespace Prefix: | mac_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of warrants issued in connection with the sale of ownership interest in a property. + References No definition available. + Details
Name: | mac_NumberOfWarrantsIssuedInRelationToSaleOfOwnershipInterest
Namespace Prefix: | mac_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage of ownership interest in a property that was sold. + References No definition available. + Details
Name: | mac_PercentageOfOwnershipInterestSold
Namespace Prefix: | mac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period of expiration of exercisable warrants, after the refinancing or repayment of each loan encumbering the related property has closed. + References No definition available. + Details
Name: | mac_PeriodOfExpirationOfExercisableWarrants
Namespace Prefix: | mac_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The initial purchase price per share of the newly issued shares during the period. + References No definition available. + Details
Name: | mac_StockIssuedDuringPeriodPerShareNewIssues
Namespace Prefix: | mac_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of additional new stock issued during the period. + References No definition available. + Details
Name: | mac_StockIssuedDuringPeriodSharesNewIssuesAdditional
Namespace Prefix: | mac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of new stock issued during the period before exercise of over-allotment option. + References No definition available. + Details
Name: | mac_StockIssuedDuringPeriodSharesNewIssuesBase
Namespace Prefix: | mac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase in additional paid in capital due to warrants issued during the period. Includes also the proceeds of debt securities issued with detachable stock purchase warrants that are allocable to the warrants. These warrants qualify for equity classification and provide the holder with a right to purchase stock from the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Warrant -URI http://asc.fasb.org/extlink&oid=6528364 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6923874&loc=d3e4724-112606 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 14 -Paragraph 16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The exercise price of each class of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph i -Subparagraph 4 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.(i)(4)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares of common stock issued as dividends during the period. Excludes stock splits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_CommonStockDividendsShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The aggregate amount paid by the entity to reacquire the right to purchase equity shares at a predetermined price, usually issued together with corporate debt. + 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 (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: 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
Name: | us-gaap_PaymentsForRepurchaseOfWarrants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration