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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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Convertible Notes, Face Value Of Trade, Percentage

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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