Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
| Commitments And Contingencies Disclosure [Abstract] | ||||
| Rent expense | $ 755 | $ 586 | $ 2,235 | $ 1,419 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
|