Property and Equipment, Net - Additional Information (Detail) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| Property, Plant and Equipment [Abstract] | ||
| Fully depreciated computer software and hardware equipment and furniture, fixtures and equipment write-off | $ 233,000 | $ 784,000 |
| Property and equipment additions incurred but not yet paid | $ 473,000 | $ 180,000 |
| X | ||||||||||
- Definition Fully depreciated computer software hardware and furniture fixtures and equipment writeoff. No definition available.
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| X | ||||||||||
- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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