Financial Information by Reportable Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Segment Reporting Information [Line Items]
Net sales to external customers	$ 865,512	$ 890,546	$ 2,665,214	$ 2,590,994
Operating income (loss)	53,677	92,903	256,421	288,502
Water & Fluid Solutions
Segment Reporting Information [Line Items]
Net sales to external customers	605,390	614,557	1,867,890	1,761,919
Intersegment sales	60	426	17	1,197
Operating income (loss)	69,228	59,608	224,894	200,657
Technical Solutions
Segment Reporting Information [Line Items]
Net sales to external customers	260,122	275,989	797,324	829,075
Intersegment sales	1,400	1,755	4,294	4,313
Operating income (loss)	52,320	48,611	153,403	144,959
All Other Segments
Segment Reporting Information [Line Items]
Intersegment sales	(1,460)	(2,181)	(4,311)	(5,510)
Operating income (loss)	$ (67,871)	$ (15,316)	$ (121,876)	$ (57,114)

The net result for the period of deducting operating expenses from operating revenues.

No definition available.

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- Definition

Amount of revenue from transactions with other operating segments of the same entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 27

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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