Joint Ventures and Other Equity Investment (Tables)

12 Months Ended

Dec. 31, 2011

Joint Ventures and Other Equity Investment [Abstract]

Summary of combined balance of equity method investments included in other assets, net totaled

	As of December 31,
	2011		2010
Equity method investments	$	24.9	$	28.2

Summary of cost of goods sold in the consolidated statements of operations

	For the Years Ended December 31,
	2011		2010		2009
Purchases of compressors	$	80.2	$	86.1	$	95.0