Equity-based Awards - Additional Information (Detail) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2021 USD ($) installment $ / shares shares
TSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 2.5
Weighted-average period of unrecognized compensation cost	2 years
PSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 0.1
Weighted-average period of unrecognized compensation cost	1 year 2 months 12 days
Decrease in share targets \| $ / shares	$ 0.25
PSUs [Member] \| Market Vesting Date [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units vesting percentage	50.00%
PSUs [Member] \| Share Based Compensation Award Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units vesting percentage	25.00%
PSUs [Member] \| Share Based Compensation Award Tranche Two [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units vesting percentage	25.00%
PRSU [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 0.2
Weighted-average period of unrecognized compensation cost	1 year 9 months 18 days
Fair value estimation method	The fair value of each PRSU award was estimated on their grant dates using a Monte Carlo simulation.
PRSU [Member] \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of Potential Payout	200.00%
PRSU [Member] \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of Potential Payout	0.00%
PRSU [Member] \| Share Based Compensation Award Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units vesting percentage	25.00%
PRSU [Member] \| Share Based Compensation Award Tranche Two [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units vesting percentage	25.00%
PRSU [Member] \| Share Based Compensation Award Tranche Three [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units vesting percentage	50.00%
2017 Non-Employee Directors Compensation Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period of unrecognized compensation cost	3 months 18 days
Number of vesting annually equal installments \| installment	3
Vesting date description	Awards granted generally vest annually in three equal installments on each of the first three anniversaries of the grant date, subject to the grantee’s continued employment through each such vesting date.
2017 Non-Employee Directors Compensation Plan [Member] \| Restricted Stock Units (RSUs) [Member] \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 0.1
EIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for future distribution (in shares) \| shares	2,789,054

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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