Company's Derivatives on Condensed Consolidated Financial Statements of Operations (Details) (Other Income (Expense), Foreign Currency Exchange Contracts, USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Other Income (Expense) | Foreign Currency Exchange Contracts
Derivative Instruments Gain Loss [Line Items]
Amount of (Loss) Gain Recognized in Income	$ 1,255	$ (58)	$ 2,117	$ 155