Supplemental Cash Flow Information - Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Supplemental Cash Flow Elements [Abstract] | |||
| Cash paid for income taxes, net | $ 4,792 | $ 2,088 | $ 1,019 |