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Debt (Details) (USD $) In Thousands, unless otherwise specified |  | 1 Months Ended |  | 12 Months Ended |  |  |  | 12 Months Ended |  |  |  | 12 Months Ended |  | 12 Months Ended
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Dec. 31, 2011 | Jul. 31, 2009 Watsco Revolving Credit Agreement [Member] | Dec. 31, 2011 Watsco Revolving Credit Agreement [Member] | Dec. 31, 2011 Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2010 Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 Watsco Unsecured Revolving Credit Agreement [Member] | Jul. 25, 2011 Carrier Enterprise Revolving Credit Agreement [Member] | Dec. 31, 2011 Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2009 Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Jul. 25, 2011 Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2010 Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 Carrier Enterprise Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 Swingline Subfacility [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 Letter Of Credit Subfacility [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 Letter Of Credit Subfacility [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 Swing Loan Subfacility [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 Alternative Option [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 Ratio Of Total Debt To EBITDA [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 Maximum [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 Minimum [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 Federal Fund Rate [Member] Alternative Option [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 London Interbank Offer Rate [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 London Interbank Offer Rate [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 London Interbank Offer Rate [Member] Alternative Option [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 London Interbank Offer Rate [Member] Maximum [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 London Interbank Offer Rate [Member] Maximum [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member] | Dec. 31, 2011 London Interbank Offer Rate [Member] Minimum [Member] Watsco Revolving Credit Agreement [Member] Unsecured Revolving Credit Agreement [Member] | Dec. 31, 2011 London Interbank Offer Rate [Member] Minimum [Member] Carrier Enterprise Revolving Credit Agreement [Member] Secured Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit agreement maximum borrowing capacity |  |  | $ 300,000 |  |  | $ 300,000 |  |  |  |  |  | $ 125,000 | $ 25,000 | $ 50,000 | $ 5,000 | $ 15,000 |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit agreement interest rate description |  |  |  | LIBOR-based rates plus a spread which ranges from 37.5 to 112.5 basis-points |  |  |  | LIBOR-based rates plus a spread which ranges from 275 to 325 basis-points |  |  |  |  |  |  |  |  | interest at the higher of the Prime Rate, the Federal Funds Rate plus 50 basis-points or a LIBOR-based rate plus 150 basis-points | LIBOR plus 40 basis-points |  |  |  |  |  |  |  |  |  |
Basis points for interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50 | 40 | 275 | 150 | 112.5 | 325 | 37.5 | 275
Basis points for commitment fee |  |  |  | 8 |  |  |  | 50 |  |  |  |  |  |  |  |  |  |  | 20 | 7.5 |  |  |  |  |  |  |  |
Revolving credit agreement outstanding |  |  |  | 20,000 | 10,000 |  |  | 0 |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit agreement maturity date |  |  |  | August 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amendment fee |  | 5,483 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit agreement, available borrowings capacity |  |  |  |  |  |  | 75,000 |  |  | 75,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Controlling interest, ownership percentage | 60.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fee in connection with entering credit agreement |  |  |  |  |  |  |  |  | $ 1,212 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Description of any adjustments made to the stated rate to determine the effective rate. + 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 Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a (1) -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 Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition Amount borrowed under the credit facility 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 19, 22 -Article 5 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line of credit amendment fee. + References No definition available. + Details
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