Basis of Preparation (Tables)

6 Months Ended

Jun. 30, 2012

Accounting Policies [Abstract]

Schedule of Inventory, Current

The components of inventory are as follows:

	June 30, 2012		December 31, 2011
Raw materials and supplies	$	75,033	$	64,832
Work in process	44,108		36,045
Finished goods	55,923		48,945
	$	175,064	$	149,822

Schedule of Product Warranty Liability

The changes in the Company’s consolidated warranty reserve during the three and six months ended June 30, 2012 and 2011 are as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Beginning balance	$	12,197		$	13,561		$	13,181		$	13,372
Warranty expense	2,613			1,429			3,602			3,602
Warranty usage	(3,562		)	(2,141		)	(5,535		)	(4,125		)
Ending balance	$	11,248		$	12,849		$	11,248		$	12,849

Schedule Of Finite Lived And Indefinite Lived Intangible Assets

The following table displays the gross carrying amount and accumulated amortization for all intangible assets:

		June 30, 2012					December 31, 2011
	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Finite-lived assets:
Unpatented technology	9 years	$	17,992	$	(9,855	)	$	18,113	$	(9,024	)
Patents	10 years	8,978		(6,696		)	9,080		(5,434		)
Product names	14 years	5,678		(1,977		)	5,638		(1,818		)
Customer relations	13 years	130,488		(53,114		)	130,488		(48,840		)
		$	163,136	$	(71,642	)	$	163,319	$	(65,116	)
Indefinite-lived intangible assets:
Trademarks and trade names		$	39,087				$	39,280
In-process research and development		—					3,070
		$	39,087				$	42,350

Schedule of Goodwill

The following table represents the changes in goodwill:

Balance as of January 1, 2012	$	288,770
Foreign currency adjustments	(520		)
Balance as of June 30, 2012	$	288,250