Intangibles - Additional Information (Detail) - USD ($) |
3 Months Ended | ||
|---|---|---|---|
May 18, 2015 |
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| Goodwill And Intangible Assets Disclosure [Abstract] | |||
| Intangible assets, Fair Value | $ 3,100,000 | ||
| Intangible assets, Useful life | 14 years | ||
| License agreement amortization expense | $ 100,000 | $ 100,000 | |
| Impairment of intangible assets | $ 0 | ||
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|