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Revenue Recognition - Schedule of Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Mar. 31, 2018
Contract Asset |  |
Balance as of March 31, 2018 | $ 16,355 | $ 11,251
Change in estimate of sales returns | 29,653 |
Actual returns | (24,549) |
Balance as of December 31, 2018 | 16,355 |
Contract Liability |  |
Balance as of March 31, 2018 | 44,337 | $ 23,156
Change in estimate of sales returns | 104,009 |
Actual returns | (82,828) |
Balance as of December 31, 2018 | $ 44,337 |

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