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Segment Reporting (Schedule Of Information Relating To Segments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Segment Reporting Information |  |  |  |
Net sales | $ 440,831 | $ 362,085 | $ 863,629 | $ 723,542
Operating profit | 59,388 | 33,634 | 115,116 | 65,472
OEM Segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 406,916 | 336,300 | 799,569 | 676,719
Operating profit | 54,402 | 29,917 | 105,053 | 59,203
Travel Trailer And Fifth-Wheels |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 289,686 | 245,707 | 573,055 | 506,064
Motorhomes |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 27,866 | 18,899 | 56,389 | 40,546
Adjacent Industries |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 89,364 | 71,694 | 170,125 | 130,109
Aftermarket Segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 33,915 | 25,785 | 64,060 | 46,823
Operating profit | $ 4,986 | $ 3,717 | $ 10,063 | $ 6,269

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