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Debt - Principal and Interest Payments on Debt (Detail) $ in Thousands | Dec. 31, 2015 USD ($) | [1]
--- | --- | ---
Debt Instrument [Line Items] |
2016, Principal | $ 3,050
2017, Principal | 6,428
2018, Principal | 6,892
2019, Principal | 3,630
Total, Principal | 20,000
2016, Interest | 1,352
2017, Interest | 980
2018, Interest | 517
2019, Interest | 1,474
Total, Interest | 4,323
2016, Total | 4,402
2017, Total | 7,408
2018, Total | 7,409
2019, Total | 5,104
Total | $ 24,323
[1] | Unless interest only period extends to December 31, 2016, as described below.

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