|
Inventories - Components of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|
| Schedule of Inventory [Line Items] | ||
| Raw materials | $ 1,616 | $ 853 |
| Work-in-process | 0 | 254 |
| Finished goods | 18,449 | 11,992 |
| Total inventories | $ 20,065 | $ 13,099 |