Other Long-Term Liabilities (Schedule of Other Long-Term Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Other Liabilities Disclosure [Abstract]
Long-term deferred compensation arrangements	$ 17.7	$ 18.7
Long-term portion of derivative liabilities	7.6	10.6
U.S. workers' compensation	1.6	1.1
Postemployment benefit liabilities	2.3	2.0
Environmental liabilities	3.5	6.0
Other	3.9	4.9
Total other long-term liabilities	$ 36.6	$ 43.3