Financial Income, Net (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Income Statement [Abstract] | |||
| Interest income | $ 3,300 | $ 2,845 | $ 2,824 |
| Gain (loss) on available-for-sale marketable securities, net | (9) | (78) | 6 |
| Amortization of premium on available-for-sale marketable securities, net | (1,064) | (1,111) | (1,121) |
| Foreign exchange loss, net | (188) | (490) | (565) |
| Accretion of Contingent Consideration | (97) | (169) | |
| Financial income, net | $ 2,039 | $ 1,069 | $ 975 |