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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2019
2018 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional Stock- based awards, grant	6,500,000
Time Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs related to unvested RSUs	$ 41.4
Non-cash stock-based compensation expense recognized	$ 16.6	$ 12.3
Inducement Award Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of shares, Inducement Award Plan			1,000,000