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Subsequent Events (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended		0 Months Ended		3 Months Ended				0 Months Ended	3 Months Ended
	Apr. 27, 2012	Mar. 31, 2012	Apr. 27, 2012 UTC Canada [Member]	Apr. 27, 2012 Carrier Enterprise III [Member]	Mar. 31, 2012 Minimum [Member]	Mar. 31, 2012 Maximum [Member]	Apr. 27, 2011 Swingline Subfacility [Member]	Apr. 27, 2011 Letter Of Credit Subfacility [Member]	Apr. 27, 2012 New Revolving Credit Facility [Member] Y	Mar. 31, 2012 New Revolving Credit Facility [Member]	Mar. 31, 2012 Previous Revolving Credit Facility [Member] Y	Mar. 31, 2012 Previous Carrier Enterprise I Secured Revolving Credit Agreement [Member] Y	Apr. 27, 2012 Scenario 1 [Member]	Mar. 31, 2012 Scenario 1 [Member] Minimum [Member]	Mar. 31, 2012 Scenario 1 [Member] Maximum [Member]	Apr. 27, 2012 Scenario 2 [Member]	Mar. 31, 2012 Scenario 2 [Member] Minimum [Member]	Mar. 31, 2012 Scenario 2 [Member] Maximum [Member]
Subsequent Event [Line Items]
Number of locations contributed to joint venture by controlling interest				35
Controlling interest, ownership percentage		60.00%		60.00%
Noncontrolling interest in Carrier Enterprise III		40.00%		40.00%
Fair value of shares issued to UTC Canada Corporation			$ 93,250
Cash consideration				82,042
Shares issued to UTC Canada Corporation, an affiliate of Carrier Corporation			1,250,000
Revolving credit agreement maximum borrowing capacity							50,000	50,000	500,000		300,000	125,000
Credit facility, term									5		5	3
Multicurrency borrowing sublimit	75,000
Basis spread													1.125%	1.00%	2.75%	0.125%	0.00%	1.75%
Line of credit facility repayments	$ 154,000
Commitment fee percentage on unused portion of the commitment	0.15%				0.125%	0.40%
Revolving credit agreement maturity date										April 2017

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Amount of cash paid to acquire the entity.

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