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Basis of Presentation (Changes in Allowance for Sales Returns and Doubtful Accounts) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Allowance for credit losses [Member] |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at beginning of year | $ 6,022 | $ 9,375 | $ 9,016
Provision/adjustment | 2,012 | 1,281 | 4,483
Write-off | 2,539 | 5,162 | 4,565
Recovery | 601 | 528 | 441
Balance at end of year | 6,096 | 6,022 | 9,375
Allowance for sales returns [Member] |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at beginning of year | 1,296 | 1,780 | 1,276
Provision/adjustment | 2,488 | 4,785 | 6,967
Write-off | 2,973 | 5,269 | 6,463
Balance at end of year | $ 811 | $ 1,296 | $ 1,780

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