v2.4.1.9

Deferred Revenue and Financing Receivables (Details) (USD $)	3 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Sep. 30, 2014
Deferred Revenue and Financing Receivables [Line Items]
Allowance for Doubtful Accounts Receivable			$ 0us-gaap_AllowanceForDoubtfulAccountsReceivable
Maximum payment terms on software purchases for credit-worthy customers (in months)	24 months
Financing Receivable, Gross	47,700,000us-gaap_NotesReceivableGross
Receivables past due	200,000us-gaap_FinancingReceivableRecordedInvestmentPastDue		0us-gaap_FinancingReceivableRecordedInvestmentPastDue
Financing receivable	47,660,000us-gaap_NotesReceivableNet		58,141,000us-gaap_NotesReceivableNet
Reserve for credit losses	0us-gaap_FinancingReceivableAllowanceForCreditLosses
Sale of finance receivable		5,300,000us-gaap_ProceedsFromSaleOfFinanceReceivables
S&P bond rating BBB-1 and above-Tier 1
Deferred Revenue and Financing Receivables [Line Items]
Financing receivable	31,921,000us-gaap_NotesReceivableNet / us-gaap_InternalCreditAssessmentAxis = pmtc_StandardPoorsBBB1RatingandAboveTier1Member		41,152,000us-gaap_NotesReceivableNet / us-gaap_InternalCreditAssessmentAxis = pmtc_StandardPoorsBBB1RatingandAboveTier1Member
Internal Credit Assessment-Tier 2
Deferred Revenue and Financing Receivables [Line Items]
Financing receivable	15,739,000us-gaap_NotesReceivableNet / us-gaap_InternalCreditAssessmentAxis = pmtc_InternallyAssignedGradeTier2Member		16,989,000us-gaap_NotesReceivableNet / us-gaap_InternalCreditAssessmentAxis = pmtc_InternallyAssignedGradeTier2Member
Internal Credit Assessment-Tier 3
Deferred Revenue and Financing Receivables [Line Items]
Financing receivable	0us-gaap_NotesReceivableNet / us-gaap_InternalCreditAssessmentAxis = pmtc_InternallyAssignedGradeTier3Member		0us-gaap_NotesReceivableNet / us-gaap_InternalCreditAssessmentAxis = pmtc_InternallyAssignedGradeTier3Member
Accounts Receivable
Deferred Revenue and Financing Receivables [Line Items]
Current receivables from contracts	35,300,000us-gaap_NotesAndLoansReceivableGrossCurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsReceivableMember		44,600,000us-gaap_NotesAndLoansReceivableGrossCurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsReceivableMember
Other Assets
Deferred Revenue and Financing Receivables [Line Items]
Billed but uncollected maintenance receivable	150,300,000us-gaap_AccountsAndOtherReceivablesNetCurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember		116,200,000us-gaap_AccountsAndOtherReceivablesNetCurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember
Long-term receivables from contracts	$ 12,400,000us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember		$ 13,500,000us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember

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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Topic 310

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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-Topic 310

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An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) within one year of the balance sheet date or the normal operating cycle, whichever is longer. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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-Number 210

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-Publisher SEC

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Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

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