Equity Schedule of Accumulated Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	$ (2.4)
Other comprehensive income before reclassifications	0.4
Amounts reclassified from accumulated other comprehensive loss	0.2
Other comprehensive income	0.6	0.3
Balance at March 31, 2013	(1.8)
Postemployment Benefits [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	0.4
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive loss	0
Other comprehensive income	0
Balance at March 31, 2013	0.4
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	(2.2)
Other comprehensive income before reclassifications	0.4
Amounts reclassified from accumulated other comprehensive loss	0
Other comprehensive income	0.4
Balance at March 31, 2013	(1.8)
Unrealized Loss on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	(0.6)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive loss	0.2
Other comprehensive income	0.2
Balance at March 31, 2013	$ (0.4)