Business Combinations (Tables)

12 Months Ended

Dec. 31, 2012

Business Combination

Schedule of identifiable intangible assets and their corresponding discount and royalty rates

Identifiable intangible asset	Method	Discount Rate			Royalty Rate
US trademarks	Relief from royalty		15.0	%		5.0	%
International trademarks	Relief from royalty		17.0	%		5.0	%
Customer relationships	Excess earnings		15.5	%
International distributor relationships	Lost profits		17.5	%
US non-compete agreements	Lost profits		15.5	%
International non-compete agreements	Lost profits		17.5	%
Patents	Relief from royalty		16.5	%		3.0	%
US backlog	Excess earnings		14.0	%
International backlog	Excess earnings		16.0	%

Schedule of estimates of fair value of intangible assets acquired and goodwill resulting from acquisition

	Estimated Fair Value			Estimated Useful Life (Years)
Consideration
Cash paid	$	125,203
Receivable from sellers		(1,659	)
Contingent consideration arrangement		88,100
Total consideration transferred	$	211,644
Recognized amounts of identifiable assets acquired and liabilities assumed:
Trade accounts receivable, net of allowances of $1,130	$	12,809
Inventories		7,545
Other assets		367
Trade accounts payable		(5,544	)
Other liabilities		(507	)
Net tangible assets acquired		14,670
Identifiable intangible assets:
Trademarks		47,200		20
Customer relationships		21,300		8
International distributor relationships		800		2
Non-compete agreements		5,300		5
Patents		6,600		14
Backlog		1,830		1
Goodwill		113,944		Non-amortizable
Total purchase price	$	211,644

Schedule of reconciliation of preliminary purchase price allocation to final purchase price allocation

	As of Acquisition			Adjustments			As of December 31, 2011
Consideration
Cash paid	$	122,524		$	2,679		$	125,203
Receivable from sellers		—			(1,659	)		(1,659	)
Contingent consideration arrangement		84,300			3,800			88,100
				$	4,820
Trade accounts payable	$	(5,590	)	$	46		$	(5,544	)
Goodwill		109,170			4,774			113,944
				$	4,820

Schedule of pro forma information

	December 31,
	2011		2010
Net sales	$	1,419,557	$	1,049,389
Income from operations	$	297,835	$	246,130