Acquisition - Additional Information (Detail)	3 Months Ended								12 Months Ended			1 Months Ended		12 Months Ended				1 Months Ended
	Dec. 31, 2011 USD ($)	Oct. 01, 2011 USD ($)	Jul. 02, 2011 USD ($)	Apr. 02, 2011 USD ($)	Dec. 31, 2010 USD ($)	Oct. 02, 2010 USD ($)	Jul. 03, 2010 USD ($)	Apr. 03, 2010 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	May 12, 2011 CPT USD ($) Year	May 12, 2011 CPT EUR (€) Year	Dec. 31, 2011 CPT USD ($)	Dec. 31, 2010 CPT USD ($)	Dec. 31, 2010 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												$ 715,311,000	€ 502,700,000						$ 4,600,000
Goodwill												451,809,000					10,100,000		4,300,000
Intangibles												197,231,000					6,300,000
Weighted average amortization period												10	10
Net sales	865,692,000	890,546,000	910,175,000	790,273,000	753,858,000	773,735,000	796,167,000	707,013,000	3,456,686,000	3,030,773,000	2,692,468,000			234,100,000
Income (loss) from continuing operations	(133,704,000)	52,054,000	68,137,000	52,034,000	49,577,000	55,729,000	61,612,000	36,029,000	38,521,000	202,947,000	116,219,000			2,400,000
Non-recurring expenses														13,200,000
Fair value adjustments of inventory and customer backlog																12,900,000
Total transaction costs related to acquisition activities									8,200,000					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