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Loss Per Share - Additional Information (Detail) - 4.50 % Convertible Senior Notes - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Earnings Per Share Disclosure [Line Items] |  |
Interest rate | 4.50% |
Weighted average closing share price | $ 21.15 |
Exercise price |  | $ 14.35
Common shares issued | 32,051 |
Convertible senior note, if-converted value in excess of outstanding principal value | $ 279,745 |
Warrants, per share | $ 22.08 |

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