Derivative Instruments and Hedging Activities (Details)	3 Months Ended		9 Months Ended
	Jun. 30, 2013 USD ($) item	Jun. 30, 2012 USD ($)	Jun. 30, 2013 USD ($) item	Jun. 30, 2012 USD ($)	Sep. 30, 2008 USD ($)	Jun. 30, 2013 USD:EUR USD ($) item	Jun. 30, 2013 USD:EUR EUR (€)	Jun. 30, 2013 USD:CAD USD ($) item	Jun. 30, 2013 USD:CAD CAD	Jun. 30, 2013 CAD:USD USD ($) item	Jun. 30, 2013 CAD:USD CAD	Jun. 30, 2013 USD:MXN USD ($) item	Jun. 30, 2013 USD:MXN MXN	Jun. 30, 2013 UKPounds:USD USD ($) item	Jun. 30, 2013 UKPounds:USD GBP (£)	Jun. 30, 2013 UKPounds:EUR USD ($) item	Jun. 30, 2013 UKPounds:EUR GBP (£)
Designated Cash Flow Hedges
Number of derivative instruments held	0		0
Aggregate notional amount of interest rate swap agreements					$ 300,000,000
Deferred gains on interest swaps, net of income tax		1,027,000		3,947,000
Deferred gains (losses) on interest rate swaps, income taxes expense (benefit)		700,000		2,500,000
Non-designated Cash Flow Hedges
Foreign currency forwards, purchase contract						3,000,000				24,900,000	26,200,000
Contractual exchange rate for buy contracts						1.2772	1.2772			1.0488	1.0488
Foreign currency forward, sale contract						33,800,000	26,000,000	2,200,000	2,300,000			1,400,000	18,700,000	13,700,000	9,000,000
Contractual exchange rate for sale contracts						1.3019	1.3019	1.0519	1.0519			13.0095	13.0095	1.5310	1.5310
Net gains (losses) included in selling, general and administrative expenses	(1,163,000)	2,239,000	(878,000)	2,611,000
Aggregate notional amount of foreign currency forwards																$ 1,200,000	£ 900,000
Weighted average contractual exchange rate for buy contracts																0.8154	0.8154