Acquisition - Additional Information (Detail)	3 Months Ended		1 Months Ended			3 Months Ended				1 Months Ended
	Mar. 31, 2012 USD ($)	Apr. 02, 2011 USD ($)	May 12, 2011 CPT USD ($) Year	May 12, 2011 CPT EUR (€) Year	Jan. 01, 2010 CPT USD ($)	Mar. 31, 2012 CPT USD ($)	Apr. 02, 2011 CPT USD ($)	Apr. 02, 2011 Business Acquisition Pro Forma Information USD ($)	Jan. 31, 2011 Hidro Filtros USD ($)	Jan. 31, 2011 Hidro Filtros Customer relationships USD ($) Year	Dec. 31, 2011 Other small acquisitions adding to Water Group USD ($)
Business Acquisition [Line Items]
Business acquisition purchase price			$ 715,300,000	€ 502,700,000							$ 4,600,000
Goodwill			451,800,000						10,100,000		4,300,000
Intangibles			197,200,000						6,300,000
Weighted average amortization period			10	10
Net sales	858,177,000	790,273,000				68,200,000
Income (loss) from continuing operations						1,600,000
Fair value adjustments of inventory and customer backlog								12,900,000
Total transaction costs related to acquisition activities					8,000,000		8,000,000
Cash paid									14,900,000		2,900,000
Note payable issued									2,100,000		1,700,000
Definite-lived intangibles										$ 5,500,000
Estimated life										13