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Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Sep. 30, 2018 | Mar. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |
Contract length | As a result of the short durations of the Company's customer contracts, which are typically effective for one year or less and have payment terms that are generally 30-60 days, these arrangements are not considered to have a significant financing component. |
Sales and allowances period | 30 days |
Contract liability | $ 20,716 | $ 23,156
Allowance for sales discounts |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |
Total Allowances | 0 | 0
Allowance for chargebacks |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |
Total Allowances | 6,888 | 7,727
Deferred Shipment Revenue |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |
Contract liability | 0 | 0
Gift Cards |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |
Contract liability | 3,020 | 3,105
Loyalty Programs |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |
Contract liability | $ 3,949 | $ 5,477

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