Basis of Preparation (Tables)

3 Months Ended

Mar. 31, 2012

Accounting Policies [Abstract]

Schedule of Inventory, Current

The components of inventory are as follows:

	March 31, 2012		December 31, 2011
Raw materials and supplies	$	69,833	$	64,832
Work in process	41,093		36,045
Finished goods	56,929		48,945
	$	167,855	$	149,822

Schedule of Product Warranty Liability

The changes in the Company’s consolidated warranty reserve during the three months ended March 31, 2012 and 2011 are as follows:

	Three Months Ended March 31,
	2012			2011
Beginning balance	$	13,181		$	13,372
Warranty expense	989			2,171
Warranty usage	(1,973		)	(1,982		)
Ending balance	$	12,197		$	13,561

Schedule Of Finite Lived And Indefinite Lived Intangible Assets

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

		March 31, 2012					December 31, 2011
	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Finite-lived assets:
Unpatented technology	9 years	$	18,229	$	(9,562	)	$	18,113	$	(9,024	)
Patents	10 years	8,978		(6,482		)	9,080		(5,434		)
Product names	14 years	5,674		(1,858		)	5,638		(1,818		)
Customer relations	13 years	130,614		(50,634		)	130,488		(48,840		)
		$	163,495	$	(68,536	)	$	163,319	$	(65,116	)
Indefinite-lived intangible assets:
Trademarks and trade names		$	39,305				$	39,280
In-process research and development		3,070					3,070
		$	42,375				$	42,350

Schedule of Goodwill

The following table represents the changes in goodwill:

Balance as of January 1, 2012	$	288,770
Foreign currency adjustments	666
Balance as of March 31, 2012	$	289,436