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Product Warranty Reserve (Details Textual) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Jun. 30, 2011 | Dec. 31, 2012
Product Warranty Reserve (Textual) [Abstract] |  |
Warranty claim |  | $ 1.6
Warranty reserve | $ 1.8 |

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- Details
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Namespace Prefix: | plpc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(2)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(3)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | duration