Acquisitions and Dispositions (Details 1) In Millions, unless otherwise specified		9 Months Ended				9 Months Ended		9 Months Ended
	Oct. 15, 2013 Joint Venture [Member]	Sep. 30, 2013 Optima Solutions [Member] USD ($)	Sep. 30, 2012 Optima Solutions [Member] USD ($)	Mar. 09, 2012 Optima Solutions [Member] USD ($)	Mar. 09, 2012 Optima Solutions [Member] GBP (£)	Sep. 30, 2012 Eastern Reservoir Services [Member] USD ($)	Apr. 23, 2012 Eastern Reservoir Services [Member] USD ($)	Sep. 30, 2012 Greywolf Production Systems [Member] USD ($)	Jul. 31, 2012 Greywolf Production Systems [Member] USD ($)
Business Acquisitions [Line Items]
Percentage of ownership interest acquired	50.00%			100.00%	100.00%
Purchase price				$ 65.0	£ 41.2		$ 42.5		$ 55.5
Contingent consideration, maximum possible payment					4
Purchase price allocation, net working capital				3.0
Purchase price allocation, property, plant, and equipment				16.8			18.5		17.7
Purchase price allocation, intangible assets				20.4			3.4		3.5
Purchase price allocation, deferred and other tax liabilities				7.2
Purchase price allocation, liabilities associated with contingent purchase price consideration				3.5
Purchase price allocation, nondeductible goodwill				35.6			20.6		34.3
Cumulative adjustment in liability associated with contingent purchase price consideration		1.8
Adjustment of liability associated with contingent purchase price consideration during the period		0.7
Revenues from acquired entitiy			15.1			16.0		5.9
Depreciation and amortization from acquired entity			3.1			1.8		0.4
Pretax earnings from acquired entity			3.6			4.7		1.2
Transaction costs associated with acquisition			$ 1.3			$ 0.5		$ 0.7