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Debt - Schedule of Net Carrying Amounts of Liability Component of Notes (Details) - 0.00% Convertible Senior Notes Due January 15, 2026 - Convertible Senior Notes | Jan. 31, 2021 USD ($)
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Debt Instrument [Line Items] |
Principal | $ 345,000,000.0
Unamortized debt discount for conversion option | (69,916,000)
Unamortized issuance costs | (7,470,000)
Net carrying amount | $ 267,614,000

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