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Segment Information (External Net Sales by Geographical Area) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Consolidated net sales | $ 590,922 | $ 507,664 | $ 479,382 | $ 445,110 | $ 562,625 | $ 494,810 | $ 493,222 | $ 487,646 | $ 2,023,078 | $ 2,038,303 | $ 2,001,240
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,118,833 | 1,054,895 | 1,025,149
All Other Countries [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 137,661 | 172,211 | 156,615
Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 537,901 | $ 569,322 | $ 519,721
Germany [Member] |  |  |  |  |  |  |  |  |  |  |
Percent of external net sales, foreign countries |  |  |  |  |  |  |  |  | 10.00% | 10.00% | 9.00%
Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 228,683 | $ 241,875 | $ 299,755

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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=63488584&loc=d3e20235-122688 + Details
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