Goodwill and Other Intangible Assets (Details 2) (USD $) In Millions, unless otherwise specified							9 Months Ended				9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Trade names	Dec. 31, 2012 Trade names	Sep. 30, 2013 Customer based intangibles	Dec. 31, 2012 Customer based intangibles	Sep. 30, 2013 Customer based intangibles Southworth Company	Jan. 31, 2013 Customer based intangibles Southworth Company	Sep. 30, 2013 Trade names and trademarks	Dec. 31, 2012 Trade names and trademarks	Sep. 30, 2013 Trade names and trademarks Southworth Company	Jan. 31, 2013 Trade names and trademarks Southworth Company	Sep. 30, 2013 Acquired technology	Dec. 31, 2012 Acquired technology
Other Intangible Assets
Non amortizable intangible assets											$ 5.0	$ 5.0
Amortizable intangible assets							0.6	0.6
Amortizable intangible assets, Gross Amount	24.0	22.9			17.2	16.3			5.7	5.5			1.1	1.1
Amortizable intangible assets, Accumulated Amortization	(11.9)	(10.3)			(7.2)	(6.2)			(4.0)	(3.4)			(0.7)	(0.7)
Non-amortizable, Gross Amount			26.6	21.4
Total, Gross Amount	$ 50.6	$ 44.3
Weighted average useful lives							15 years				8 years