Stockholders' Equity - Summary of Changes in Fair Value for Embedded Derivative (Detail) - USD ($) $ in Thousands |
1 Months Ended | 12 Months Ended |
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Feb. 10, 2017 |
Dec. 31, 2016 |
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| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] | ||
| Fair value at the beginning of period and initial fair value, respectively | $ 8,753 | $ 5,445 |
| (Gain) loss on exchange feature | (2,209) | 3,308 |
| Fair value at the end of the period and year, respectively | $ 6,544 | $ 8,753 |
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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