Debt (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended															12 Months Ended		12 Months Ended				1 Months Ended			12 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Interest rate swap	Jun. 30, 2012 Interest rate swap	Dec. 31, 2010 Interest rate swap	Dec. 31, 2013 Interest rate swap Cash flow hedges	Dec. 31, 2013 Foreign operation's working capital line of credit	Dec. 31, 2012 Foreign operation's working capital line of credit	Dec. 31, 2013 Revolving credit line	Jun. 30, 2013 Revolving credit line	Dec. 31, 2012 Capital lease and other obligations	Jun. 30, 2013 Term loan	Dec. 31, 2012 Term loan	Dec. 31, 2013 Senior secured credit facility - revolving loan due 2018	Jun. 30, 2013 Senior secured credit facility - revolving loan due 2018	Dec. 31, 2013 Senior secured credit facility - revolving loan due 2018 Minimum	Dec. 31, 2013 Senior secured credit facility - revolving loan due 2018 Maximum	Dec. 31, 2012 Senior secured credit facility - term loan due 2015	Dec. 31, 2012 Senior secured credit facility - revolving loan due 2015	Jun. 30, 2012 6.75% senior subordinated notes due 2015	Feb. 28, 2011 6.75% senior subordinated notes due 2015	Dec. 31, 2010 6.75% senior subordinated notes due 2015	Dec. 31, 2012 6.75% senior subordinated notes due 2015	Dec. 31, 2011 6.75% senior subordinated notes due 2015	Dec. 31, 2013 6.75% senior subordinated notes due 2015	Feb. 01, 2005 6.75% senior subordinated notes due 2015
Debt
Interest rate (as a percent)		6.75%	6.75%	6.75%																		6.75%	6.75%
Short-term borrowings and current maturities of long-term debt		$ 3.0	$ 16.6						$ 3.0	$ 4.8			$ 1.8		$ 10.0
Long-term debt		292.0	240.0													292.0				75.0	165.0
Total debt		295.0	256.6
Maximum borrowing capacity									10.0		10.0						600.0
Face value												360.0		82.5														225.0
Variable rate basis																LIBOR
Spread on variable rate basis (as a percent)																1.25%
Reduction in new initial interest rate (as a percent)																0.75%
Amount outstanding									3.0
Interest coverage ratio required to be maintained (as a percent)																		3.50	3.50
Notional amount								150.0
Average fixed interest rate (as a percent)					81.567%	0.6725%	1.03%	0.81567%
Repayment of debt																						73.5	150.0
Call premium (as a percent)																						1.125%	2.25%
Amount of notes purchased on the open market																											1.5
Add-on to senior secured credit facility																								135.0	75.0
Call premium																									1.1	4.9
Impact of call premium on diluted earnings per share, net of tax (in dollars per share)																									$ 0.01	$ 0.03
Pre-tax charge incurred on call premium	$ 1.0																								$ 1.1	$ 4.9