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Segment Information - Summary of Company's Reportable Segments (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 409,776 | $ 439,192 | $ 424,404
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 618 | 648 | 575
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (450) | (597) | (827)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 11,207 | 15,541 | 15,010
Net income |  |  |  |  |  |  |  |  |  |  |
Net income | 3,132 | 6,104 | 6,386 | 4,965 | 5,273 | 9,284 | 6,596 | 8,133 | 20,587 | 29,286 | 30,984
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 21,034 | 21,043 | 18,912
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 12,088 | 11,564 | 10,525
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 332,406 |  |  |  | 333,064 |  |  |  | 332,406 | 333,064 |
Operating Segments [Member] | PLP-USA [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 144,054 | 162,027 | 146,146
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 0 | 3 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (305) | (437) | (270)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 6,286 | 9,581 | 6,708
Net income |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 10,875 | 13,290 | 10,413
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 12,262 | 6,702 | 3,798
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 3,793 | 3,520 | 3,438
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 90,414 |  |  |  | 84,192 |  |  |  | 90,414 | 84,192 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 36,888 |  |  |  | 27,353 |  |  |  | 36,888 | 27,353 |
Operating Segments [Member] | The Americas [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 91,497 | 92,584 | 100,144
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 290 | 283 | 160
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (41) | (58) | (295)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 2,585 | 2,722 | 3,864
Net income |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 5,896 | 6,763 | 8,159
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 3,107 | 2,781 | 7,114
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 2,444 | 2,565 | 2,244
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 73,200 |  |  |  | 67,745 |  |  |  | 73,200 | 67,745 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 19,168 |  |  |  | 20,069 |  |  |  | 19,168 | 20,069 |
Operating Segments [Member] | EMEA [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 61,543 | 66,272 | 61,430
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 215 | 209 | 155
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (68) | (50) | (47)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 2,052 | 2,769 | 1,637
Net income |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 6,047 | 6,840 | 5,519
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 2,573 | 2,816 | 2,427
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,792 | 1,714 | 1,818
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 51,345 |  |  |  | 51,370 |  |  |  | 51,345 | 51,370 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 14,467 |  |  |  | 13,263 |  |  |  | 14,467 | 13,263 |
Operating Segments [Member] | Asia-Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 112,682 | 118,309 | 116,684
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 113 | 153 | 260
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (36) | (52) | (215)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 284 | 469 | 2,801
Net income |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | (2,231) | 2,393 | 6,893
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 3,092 | 8,744 | 5,573
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 4,059 | 3,765 | 3,025
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 117,129 |  |  |  | 129,437 |  |  |  | 117,129 | 129,437 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 29,938 |  |  |  | 32,641 |  |  |  | 29,938 | 32,641 |
Segment Reconciling Items [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 409,776 | 439,192 | 424,404
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 618 | 648 | 575
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (450) | (597) | (827)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 11,207 | 15,541 | 15,010
Net income |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 20,587 | 29,286 | 30,984
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 21,034 | 21,043 | 18,912
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 12,088 | 11,564 | 10,525
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 332,088 |  |  |  | 332,744 |  |  |  | 332,088 | 332,744 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 100,461 |  |  |  | 93,326 |  |  |  | 100,461 | 93,326 |
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 31,714 | 35,386 | 30,106
Intersegment Eliminations [Member] | PLP-USA [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 12,939 | 8,537 | 9,095
Intersegment Eliminations [Member] | The Americas [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 6,204 | 7,501 | 7,048
Intersegment Eliminations [Member] | EMEA [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 2,080 | 4,582 | 1,968
Intersegment Eliminations [Member] | Asia-Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 10,491 | 14,766 | 11,995
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | $ 318 |  |  |  | $ 320 |  |  |  | $ 318 | $ 320 |

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