Commitments and Contingencies - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended |
---|---|---|
Jun. 30, 2019 |
Jun. 30, 2019 |
|
Cash paid for amounts included in the measurement of lease liabilities: | ||
Operating cash flows from operating leases | $ 94 | $ 188 |
Investing cash flows from operating leases | 299 | 299 |
Right-of-use assets obtained in exchange for lease obligations: | ||
Operating leases | $ 6,518 | $ 6,518 |