Summary of Significant Accounting Policies - Narrative (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Advertising costs	$ 1.2	$ 1.2	$ 1.3
Other shipping and handling costs	$ 11.3	$ 11.3	$ 9.2
Maximum Remaining Maturity of Foreign Currency Derivatives	9 months