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v3.22.1

Convertible Senior Notes - Additional Information (Detail) |  |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) | May 02, 2017 USD ($) d $ / shares | Nov. 30, 2020 USD ($) | Mar. 31, 2022 USD ($) $ / shares
Debt Instrument [Line Items] |  |  |  |
Accounting Standards Update [Extensible List] | Accounting Standards Update 2020-06 |  |  |
Convertible senior notes | $ 335,100,000 |  |  | $ 377,700,000
Accumulated deficit | (635,800,000) |  |  | (547,400,000)
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Convertible senior notes | 42,200,000 |  |  |
Deferred tax liabilities | 9,900,000 |  |  |
Additional Paid in Capital | 106,800,000 |  |  |
Accumulated deficit | 74,500,000 |  |  |
2.25% Convertible senior notes due 2024 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Principal Amount | 381,200,000 | $ 517,500,000 |  | 381,200,000
Interest rate percentage |  | 2.25% |  |
Carrying amount of the liability component upon issuance |  | $ 368,300,000 |  |
Convertible senior note assumed borrowing rate |  | 7.50% |  |
Convertible senior note carrying value of the equity component |  | $ 149,200,000 |  |
Convertible senior notes term |  | 7 years |  |
Transaction cost related to issuance of convertible senior notes |  | $ 14,700,000 |  |
Aggregate principal amount repurchased |  |  | $ 136,200,000 |
Aggregate repurchase price paid in cash |  |  | 186,900,000 |
Fair value of the liability component immediately before extinguishment |  |  | 130,700,000 |
Equity component of repurchased convertible senior notes |  |  | 56,300,000 |
Carrying amount of the liability component at settlement |  |  | 112,400,000 |
Loss on extinguishment of convertible senior notes |  |  | $ 18,400,000 |
Convertible senior notes | $ 335,100,000 |  |  | $ 377,700,000
Convertible senior notes convertible in to shares |  | 0.0131711 |  |
Convertible senior notes conversion price (in USD per share) | $ / shares |  | $ 75.92 |  |
Convertible senior note premium |  | 42.50% |  |
Market price of common stock (in USD per share) | $ / shares |  | $ 53.28 |  |
Convertible senior notes redemption rate |  | 100.00% |  |
2.25% Convertible senior notes due 2024 | Conversion Period One [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Threshold consecutive common stock trading days | d |  | 30 |  |
Threshold percentage of common stock price trigger |  | 130.00% |  |
Common stock price trigger (in USD per share) | $ / shares |  |  |  | $ 98.70
Threshold common stock trading days | d |  | 20 |  |
2.25% Convertible senior notes due 2024 | Conversion Period Two [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Principal amount on conversion rate |  | $ 1,000 |  |
Threshold common stock trading days | d |  | 5 |  |
Minimum percentage of common stock price trigger |  | 98.00% |  |
2.25% Convertible senior notes due 2024 | Measurement Input, Discount Rate |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Discount rate |  |  | 0.0337 |

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