Acquisitions (Subsequent Events) (Details) (Sanbolic, Inc. [Member], USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended
	Jan. 08, 2015	Dec. 31, 2014
Subsequent Event [Line Items]
Estimated acquisition transaction costs		$ 0.2
Subsequent Event [Member]
Subsequent Event [Line Items]
Preliminary consideration in business acquisition	89.4
Cash acquired from the acquisition	0.2
Estimated acquisition transaction costs	$ 0.4
Stock options converted and assumed (in shares)	37,057