Affiliated Companies (Textuals) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]
Unremitted income of affiliated companies	$ 41.9	$ 37.5	$ 31.5
Dividends received from affiliated companies	0.4	0.3	0.3
Purchases and royalty payments made to affiliates	75.2	66.4	49.3
Amount due and payable to affiliates	10.6	9.2
Sales to affiliates	3.5	4.5	2.4
Amount receivable from affiliates	0.6	1.3
Investments in affiliated companies	59.8	56.2
Daikyo Seiko, Ltd. [Member]
Schedule of Equity Method Investments [Line Items]
Equity in unrealized (gains) losses in securities available-for-sale and derivative instruments	$ (0.8)	$ (0.4)	$ (0.1)