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Segment Information - Summary of Company's Reportable Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Net sales |  |  |
Net sales | $ 98,139 | $ 84,569 |
Income taxes |  |  |
Income taxes | 2,101 | 600 |
Net income (loss) |  |  |
Net income (loss) | 5,528 | 1,518 |
Assets |  |  |
Identifiable assets | 375,961 |  | $ 359,785
PLP-USA [Member] |  |  |
Net sales |  |  |
Net sales | 39,443 | 34,861 |
Income taxes |  |  |
Income taxes | 374 | (422) |
Net income (loss) |  |  |
Net income (loss) | 1,714 | (632) |
Assets |  |  |
Identifiable assets | 123,131 |  | 116,484
The Americas [Member] |  |  |
Net sales |  |  |
Net sales | 19,546 | 16,570 |
Income taxes |  |  |
Income taxes | 1,388 | 711 |
Net income (loss) |  |  |
Net income (loss) | 3,143 | 1,785 |
Assets |  |  |
Identifiable assets | 73,182 |  | 70,720
EMEA [Member] |  |  |
Net sales |  |  |
Net sales | 15,081 | 13,852 |
Income taxes |  |  |
Income taxes | 237 | 203 |
Net income (loss) |  |  |
Net income (loss) | 363 | 619 |
Assets |  |  |
Identifiable assets | 66,427 |  | 62,524
Asia-Pacific [Member] |  |  |
Net sales |  |  |
Net sales | 24,069 | 19,286 |
Income taxes |  |  |
Income taxes | 102 | 108 |
Net income (loss) |  |  |
Net income (loss) | 308 | (254) |
Assets |  |  |
Identifiable assets | 113,221 |  | $ 110,057
Intersegment Eliminations [Member] |  |  |
Net sales |  |  |
Net sales | (6,195) | (6,614) |
Intersegment Eliminations [Member] | PLP-USA [Member] |  |  |
Net sales |  |  |
Net sales | (2,183) | (3,007) |
Intersegment Eliminations [Member] | The Americas [Member] |  |  |
Net sales |  |  |
Net sales | (1,968) | (1,241) |
Intersegment Eliminations [Member] | EMEA [Member] |  |  |
Net sales |  |  |
Net sales | (334) | (315) |
Intersegment Eliminations [Member] | Asia-Pacific [Member] |  |  |
Net sales |  |  |
Net sales | $ (1,710) | $ (2,051) |

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