XML 15 R33.htm IDEA: XBRL DOCUMENT v2.4.1.9
Restructuring Charges (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Jan. 03, 2015
Sep. 30, 2014
employees
Dec. 28, 2013
Restructuring Cost and Reserve [Line Items]      
Credit to operations $ (255)us-gaap_RestructuringCharges $ 26,800us-gaap_RestructuringCharges $ 1,067us-gaap_RestructuringCharges
Number of employees terminated   283pmtc_NumberOfEmployeesTerminated  
Employee Severance and Related Benefits      
Restructuring Cost and Reserve [Line Items]      
Credit to operations (255)us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= pmtc_EmployeeSeveranceAndRelatedBenefitsMember		    
Facility Closures and Related Costs      
Restructuring Cost and Reserve [Line Items]      
Credit to operations $ 0us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_FacilityClosingMember