Property, Equipment, Improvements and Intangible Assets - Summary of Capitalized Software (Detail) - USD ($) $ in Thousands |
Sep. 30, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|---|
| Capitalized Computer Software, Net [Abstract] | |||
| Capitalized software | $ 471 | $ 471 | $ 471 |
| Less: accumulated amortization | (294) | (150) | (31) |
| Capitalized software, net | $ 177 | $ 321 | $ 440 |
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- Definition For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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