Debt Instrument, Number of Amortization Installments

No definition available.

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- Definition

Debt Instruments, Number of Instruments, Increase

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Debt Payment, Percentage of Property Tax Payment Due

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

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

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LoansPayableMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_DebtInstrumentAxis=pti_ItalianSubsidizedLoanDueJune2020Member
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- Details

Name:	us-gaap_DebtInstrumentAxis=pti_ItalianBankLoanDueJune2020Member
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Data Type:	na
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- Details

Name:	us-gaap_VariableRateAxis=pti_Euribor6monthMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=pti_GovernmentofAustriaResearchandDevelopmentLoansDueMarch2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_LongtermDebtTypeAxis=pti_SellerFinancingMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_DebtInstrumentAxis=pti_NonInterestBearingLoanDueMay2016Member
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- Details

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Long-term Debt - Other Financing Arrangements (Details) $ in Millions	3 Months Ended			9 Months Ended
	Jul. 31, 2016 USD ($)	Apr. 30, 2016 EUR (€)	Jul. 31, 2013 EUR (€) payment debt_instrument	Jul. 31, 2016 USD ($)	Jul. 31, 2015 USD ($)	Oct. 31, 2015 USD ($)	Aug. 31, 2015 USD ($)	Sep. 30, 2014 USD ($)
Debt Instrument [Line Items]
Proceeds from long-term debt				$ 0.8	$ 803.8
Total long-term debt outstanding	$ 2,723.2			$ 2,723.2		$ 2,679.9
Investment in Facility
Debt Instrument [Line Items]
Long-term investment commitment, minimum amount							$ 47.0
Loan
Debt Instrument [Line Items]
Number of incremental debt instruments \| debt_instrument			2
Loan \| Italian subsidized loan due June 2020
Debt Instrument [Line Items]
Amount of debt issued \| €			€ 6,000,000.0
Proceeds from long-term debt \| €		€ 600,000	€ 5,400,000
Stated rate (as percent)	0.50%		0.50%	0.50%
Total long-term debt outstanding	$ 4.2			$ 4.2		4.3
Loan \| Italian bank loan due June 2020
Debt Instrument [Line Items]
Amount of debt issued \| €			€ 700,000.0
Proceeds from long-term debt \| €		€ 100,000	€ 600,000
Number of semi-annual installments \| payment			6
Total long-term debt outstanding	$ 0.7			0.7		0.7
Loan \| Italian bank loan due June 2020 \| Euribor rate
Debt Instrument [Line Items]
Basis spread (as percent)	7.10%		7.10%
Loan \| Government of Austria research and development loans due March 2020
Debt Instrument [Line Items]
Total long-term debt outstanding	$ 3.7			3.7		4.7
Seller financing \| Seller financing, non-Interest Bearing Loan Due May 2016
Debt Instrument [Line Items]
Total long-term debt outstanding	0.0			0.0		2.0		$ 4.0
Other Obligations
Debt Instrument [Line Items]
Total long-term debt outstanding	$ 0.1			$ 0.1		$ 0.1
Percentage of property tax payment due (as percent)							50.00%