Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Net foreign currency loss	$ (2.8)	$ 0.0	$ (4.6)	$ 1.4
Gain (loss) from the change in fair value of financial instruments	(0.3)	$ (0.1)	1.3	$ 2.3
Notional amount	$ 268.0		$ 268.0		$ 145.9