Share-based Compensation - Schedule of Shares Issued Under 2013 EIP (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
| Share-based payments | $ 5,843 | $ 6,506 | $ 11,884 |
| Employee 2013 EIP [Member] | |||
| Disclosure of terms and conditions of share-based payment arrangement [Line Items] | |||
| Number of shares vested under the 2013 EIP | 168,641 | 261,984 | |
| Share-based payments | $ 220 | $ 1,006 | |