Segment Information (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Summarized financial information of the reportable segments
Sales to external customers, Consolidated Total	$ 1,121,813	$ 971,681	$ 3,244,772	$ 2,891,683
Segment operating income Subtotal - Reportable Segments	154,957	129,196	425,315	417,399
EPD [Member]
Summarized financial information of the reportable segments
Sales to external customers, Consolidated Total	554,708	494,912	1,593,681	1,520,267
Intersegment sales	19,549	16,388	61,640	47,310
Segment operating income Subtotal - Reportable Segments	91,921	92,785	270,363	301,418
IPD [Member]
Summarized financial information of the reportable segments
Sales to external customers, Consolidated Total	200,190	166,741	563,586	539,634
Intersegment sales	15,449	9,729	52,895	31,610
Segment operating income Subtotal - Reportable Segments	16,532	9,534	39,225	46,414
FCD [Member]
Summarized financial information of the reportable segments
Sales to external customers, Consolidated Total	366,915	310,028	1,087,505	831,782
Intersegment sales	1,407	2,532	5,498	5,618
Segment operating income Subtotal - Reportable Segments	63,769	45,690	171,239	127,920
Reportable Segment [Member]
Summarized financial information of the reportable segments
Sales to external customers, Consolidated Total	1,121,813	971,681	3,244,772	2,891,683
Intersegment sales	36,405	28,649	120,033	84,538
Segment operating income Subtotal - Reportable Segments	172,222	148,009	480,827	475,752
Intersegment Elimination [Member]
Summarized financial information of the reportable segments
Intersegment sales	(36,405)	(28,649)	(120,033)	(84,538)
Segment operating income Subtotal - Reportable Segments	$ (17,265)	$ (18,813)	$ (55,512)	$ (58,353)

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

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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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1

Reference 2: 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

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