Restructuring, integration and other charges (Details Textuals) (USD $)	3 Months Ended
	Dec. 31, 2011
Restructuring, integration and other charges (Textuals) [Abstract]
Remaining number of restructuring plans	4
Fiscal Year 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	350
Restructuring And Related Costs Number Of facilities Vacated	14
Restructuring Charges	$ 28,938,000
Fiscal Year 2012 [Member] | Americas [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring And Related Costs Number Of facilities Vacated	9
Fiscal Year 2012 [Member] | EMEA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring And Related Costs Number Of facilities Vacated	3
Fiscal Year 2012 [Member] | Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring And Related Costs Number Of facilities Vacated	2
Fiscal Year 2012 [Member] | EM [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	250
Restructuring Charges	19,494,000
Fiscal Year 2012 [Member] | TS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	100
Restructuring Charges	$ 9,444,000