Discontinued Operations - Summary of Loss from Discontinued Operations (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Discontinued Operations And Disposal Groups [Abstract] | |||||||||||
| Net revenues | $ 66,538 | $ 67,056 | $ 70,162 | ||||||||
| Cost of sales | 56,043 | 56,456 | 58,976 | ||||||||
| Research and development costs | 729 | 846 | 1,009 | ||||||||
| Selling, general and administrative expenses | 7,823 | 5,739 | 7,640 | ||||||||
| Interest expense | 934 | 1,141 | 923 | ||||||||
| Other (income) expense | (137) | 355 | 1,530 | ||||||||
| Income from discontinued operations before income taxes | 1,146 | 2,519 | 84 | ||||||||
| Loss on sale of discontinued operations including transactions expense of $1,201 and $720, in 2016 and 2015 respectively | (15,068) | (2,142) | |||||||||
| Total (loss) gain on discontinued operations before income taxes | (13,922) | 377 | 84 | ||||||||
| Income tax expense related to discontinued operations | 37 | 440 | 160 | ||||||||
| Net loss on discontinued operations | $ (7,237) | $ (11,527) | $ 2,365 | $ 2,440 | $ (1,663) | $ (1,977) | $ 3,122 | $ 455 | $ (13,959) | $ (63) | $ (76) |