Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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- Details

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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_CreditFacilityAxis=pah_RevolvingCreditFacilityMultiCurrencyMember
Namespace Prefix:
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Debt - Amended and Restated Credit Agreement (Details) - USD ($)	9 Months Ended
	Sep. 30, 2018	Jun. 08, 2019
Letter of Credit
Line of Credit Facility [Line Items]
Maximum capacity	$ 30,000,000.0
Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum capacity	$ 485,000,000
Commitment fee percentage	0.50%
Line of Credit \| Revolving Credit Facility \| Forecast
Line of Credit Facility [Line Items]
Maximum capacity		$ 410,000,000
Line of Credit \| Revolving Credit Facility \| Eurodollar
Line of Credit Facility [Line Items]
Spread on variable rate (as a percent)	3.00%
Line of Credit \| Revolving Credit Facility \| Base Rate
Line of Credit Facility [Line Items]
Spread on variable rate (as a percent)	2.00%
Line of Credit \| Revolving Credit Facility, U.S. Dollars
Line of Credit Facility [Line Items]
Maximum capacity	$ 240,000,000
Line of Credit \| Revolving Credit Facility, Multi-Currency
Line of Credit Facility [Line Items]
Maximum capacity	$ 245,000,000