Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2011 Y	Dec. 31, 2010	Dec. 31, 2009
Summary of Significant Accounting Policies (Textual) [Abstract]
Original maturity period of cash and cash equivalents	Three months or less
Fair value of cash and cash equivalents based on quoted market prices in active markets Level 1 valuation	$ 62,300,000	$ 148,100,000
Amount of inventory as a percentage of prior year purchases that can be returned by certain distributors	3.00%
Unprocessed adjustments recognized against gross accounts receivables	14.4	12.7
Bad debt expense	1,100,000	900,000	1,400,000
Allowance for doubtful accounts	2,600,000	2,700,000
Obsolescence and other reserves	(18,641,000)	(22,277,000)
Estimated useful life of related assets	Less than one year
Maximum useful life of customer relations	25
Trademark impairment charges	0	600,000	2,700,000
Recognized impairment charges for amortizable intangible assets			3,600,000
Percentage of projected benefit obligation	Lesser of 10%
Accrued sales rebates	34,700,000	32,100,000
Amortization period of capitalized environmental cost	15 years
Advertising costs	$ 16,100,000	$ 15,600,000	$ 12,900,000
Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of related assets Minimum	10
Estimated useful life of related assets Maximum	40
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of related assets Minimum	5
Estimated useful life of related assets Maximum	12
Computer equipment and software [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of related assets Minimum	5
Estimated useful life of related assets Maximum	10