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Segment Reporting (Schedule Of Information Relating To Segments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Segment Reporting Information |  |  |  |
Net sales | $ 412,370 | $ 345,296 | $ 1,275,999 | $ 1,068,838
Operating profit | 45,138 | 27,171 | 160,254 | 92,643
OEM Segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 375,914 | 315,213 | 1,175,483 | 991,932
Operating profit | 39,023 | 22,468 | 144,076 | 81,671
Travel Trailer And Fifth-Wheels |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 263,579 | 216,093 | 836,634 | 722,157
Motorhomes |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 29,372 | 23,539 | 85,761 | 64,085
Adjacent Industries |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 82,963 | 75,581 | 253,088 | 205,690
Aftermarket Segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 36,456 | 30,083 | 100,516 | 76,906
Operating profit | $ 6,115 | $ 4,703 | $ 16,178 | $ 10,972

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