Equity - Additional Information - Stock Issuance - Shares issued to PM Group (Detail) - Jan. 15, 2015 - PM Group [Member] € in Thousands, $ in Thousands |
USD ($)
shares
|
EUR (€)
shares
|
EUR (€) |
|---|---|---|---|
| Business Acquisition [Line Items] | |||
| Fair value of purchase consideration | $ 30,436 | € 25,852 | |
| Stock issued in connection with asset purchase, value | $ 20,312 | € 17,142 | |
| Common stock of company | 994,483 | 994,483 | |
| Common stock consideration, value | $ 10,124 | € 8,710 |