Other Intangible Assets - Summary of Other Intangible Assets Net Consisting of Product Rights and Licenses (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Value | $ 10,950 | $ 10,950 |
| Accumulated Amortization | (7,694) | (6,724) |
| Intangible Assets, net | $ 3,256 | $ 4,226 |
| Weighted average Useful Life | 10 years 10 months 6 days | 10 years 9 months 18 days |
| Product Rights [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Value | $ 9,050 | $ 9,050 |
| Accumulated Amortization | (6,177) | (5,302) |
| Intangible Assets, net | $ 2,873 | $ 3,748 |
| Weighted average Useful Life | 9 years 1 month 17 days | 9 years 1 month 21 days |
| Licenses [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Value | $ 1,900 | $ 1,900 |
| Accumulated Amortization | (1,517) | (1,422) |
| Intangible Assets, net | $ 383 | $ 478 |
| Weighted average Useful Life | 14 years | 1 year 7 months 28 days |