Identification of the specific currency to be sold upon settlement or exercise of the foreign currency derivative.

No definition available.

Name:	us-gaap_DerivativeCurrencySold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeRemainingMaturity1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=plt_ForeignExchangeForwardEuroMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=plt_ForeignExchangeForwardGbpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=plt_ForeignExchangeForwardAudMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

FOREIGN CURRENCY DERIVATIVES (Details 2) - 6 months ended Sep. 30, 2019 € in Thousands, £ in Thousands, $ in Thousands, $ in Thousands	USD ($)	EUR (€)	GBP (£)	AUD ($)
Foreign Exchange Forward, EURO [Member]
Derivative [Line Items]
Notional amount of contracts	$ 44,784	€ 40,800
Position	Sell EUR
Maturity	1 month
Foreign Exchange Forward, GBP [Member]
Derivative [Line Items]
Notional amount of contracts	$ 10,973		£ 8,900
Position	Sell GBP
Maturity	1 month
Foreign Exchange Forward, AUD [Member]
Derivative [Line Items]
Notional amount of contracts	$ 2,914			$ 4,300
Position	Sell AUD
Maturity	1 month