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Segment Information (Schedule Of Revenue By Category) (Details) - Revenue Benchmark [Member] - Product Concentration Risk [Member] | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Climb [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Concentration risk, percentage | 27.00% | 30.00% | 33.00% | 34.00%
Mountain [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Concentration risk, percentage | 33.00% | 37.00% | 30.00% | 35.00%
Ski [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Concentration risk, percentage | 17.00% | 22.00% | 15.00% | 17.00%
Sport [Member] |  |  |  |
Product Information [Line Items] |  |  |  |
Concentration risk, percentage | 23.00% | 11.00% | 22.00% | 14.00%

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