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Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Nov. 11, 2020 | Mar. 05, 2019 | Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Intangible asset impairment |  |  | $ 0 | $ 4,549 | $ 0
Fixed asset impairment | $ 3,975 | $ 14,958 |  |  |
2027 Notes |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Trading of convertible notes, face value, disclosed as a percentage |  |  | 102.00% | 94.00% |
2023 Notes |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Trading of convertible notes, face value, disclosed as a percentage |  |  | 105.00% | 97.00% |
Fair Value, Measurements, Nonrecurring |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of fixed assets | $ 14,456 |  | $ 242 |  |
Trademarks | EMEA |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of fixed assets |  |  |  | $ 1,700 |
Intangible asset impairment |  |  |  | $ 4,549 |
Royalty Rate | Trademarks | EMEA | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement inputs |  |  |  | 0.0125 |
Discount Rate | Trademarks | EMEA | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement inputs |  |  |  | 0.130 |

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