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Segment Information (External Net Sales by Geographical Area) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2013
Consolidated net sales | $ 562,625 | $ 494,810 | $ 493,222 | $ 487,646 | $ 565,447 | $ 524,284 | $ 482,467 | $ 429,042 | $ 2,038,303 | $ 2,001,240 | $ 1,935,976
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,054,895 | 1,025,149 | 1,058,912
All Other Countries [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 172,211 | 156,615 | 108,400
Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 569,322 | $ 519,721 | $ 480,922
Germany [Member] |  |  |  |  |  |  |  |  |  |  |
Percent of external net sales, foreign countries |  |  |  |  |  |  |  |  | 10.00% | 9.00% | 9.00%
Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 241,875 | $ 299,755 | $ 287,742

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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=26872669&loc=d3e20235-122688 + Details
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