Summary of IPR&D Intangible Assets and Goodwill (Parenthetical) (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2016 |
Dec. 31, 2015 |
Sep. 30, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Finite Lived Intangible Assets [Line Items] | |||||
| Impairment of intangible asset | $ 104,500 | $ 89,600 | $ 104,517 | ||
| Intangible assets | 101,500 | $ 101,500 | |||
| In Process Research and Development | |||||
| Finite Lived Intangible Assets [Line Items] | |||||
| Impairment of intangible asset | $ 104,500 | 104,517 | 89,557 | ||
| Intangible assets | $ 101,500 | $ 0 | $ 101,500 | $ 212,900 | |