Business Combinations (Tables)

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Schedule of Purchase Price

The following table summarizes the allocation of the purchase price as of April 29, 2011 (in thousands):

Assets	$	15,745
Property, plant and equipment	3,624
Acquired identifiable intangible assets:
Trademarks (one to fifteen year useful lives)	7,100
Existing technology (thirteen year useful life)	12,600
Customer relationships (eleven year useful life)	33,500
Goodwill	135,349
Liabilities assumed	(20,330		)
Total	$	187,588

Pro Forma Financial Information

The pro forma financial information is presented for informational purposes only and is not indicative of the results of operations that would have been achieved if the acquisition had taken place at the beginning of January 1, 2011 and 2010 or of results that may occur in the future (in thousands):

	Year Ended December 31,
	2011		2010
Net revenues	$	492,468	$	425,025
Net income	$	62,116	$	69,952