Business Acquisition (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 19, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Business Acquisition [Line Items]
Income (Loss) from Continuing Operations Attributable to Parent		$ 24.5	$ 25.0	$ 43.3	$ 48.2
Goodwill		125.3		125.3		$ 125.5
Pronamic And SNN [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables						3.5
Business Combination, Working Capital Adjustments	$ 0.7			0.4
Cash consideration	30.7
Goodwill						5.4
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	3.5	1.0		1.0
Business Combination, Contingent Consideration, Liability	$ 1.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory						3.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other						0.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment						9.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill						11.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets						27.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable						1.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other						1.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net						25.0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net						30.4
Acquisition-related Costs [Member] | DelStar [Member]
Business Acquisition [Line Items]
Income (Loss) from Continuing Operations Attributable to Parent		$ (0.3)		$ (0.6)		$ (1.3)