XML 60 R49.htm IDEA: XBRL DOCUMENT v3.8.0.1

Recently Adopted Accounting Pronouncements - Additional Information (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
ASU 2016-09 [Member]
Significant Accounting Policies [Line Items]
Excess tax benefit from stock-based compensation awards	$ 0

X

- Definition

Significant accounting policies.

+ References

No definition available.

+ Details

Name:	plpc_SignificantAccountingPoliciesLineItems
Namespace Prefix:	plpc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=96864182&loc=d3e11374-113907

+ Details

Name:	us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201609Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: