Derivative Instruments (Tables)

12 Months Ended

Sep. 30, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional Amounts Outstanding under Foreign Currency Contracts

The Company had the following notional amounts outstanding under foreign currency contracts that qualify for cash flow hedge accounting at September 30, 2013 (in thousands):    

Buy Currency	Notional Amount of Buy Currency in U.S. Dollars		Sell Currency	Maturity	Notional Amount of Sell Currency in U.S. Dollars		Fair Value of Assets		Fair Value of Liabilities
U.S. Dollar	$	2,037	Japanese Yen	April 2014	$	2,014	$	23	$	—

The Company had the following notional amounts outstanding under foreign currency contracts that do not qualify for hedge accounting at September 30, 2013 and 2012 (in thousands):

September 30, 2013:

Buy Currency	Notional Amount of Buy Currency in U.S. Dollars		Sell Currency	Maturity	Notional Amount of Sell Currency in U.S. Dollars		Fair Value of Assets		Fair Value of Liabilities
U.S. Dollar	$	2,770	Japanese Yen	October 2013 to December 2013	$	2,762	$	8	$	—
Korean Won	686		U.S. Dollar	October 2013	688		—		2
U.S. Dollar	301		Israeli Shekel	October 2013	304		—		3
U.S. Dollar	231		Singapore Dollar	October 2013	231		—		—
	$	3,988			$	3,985	$	8	$	5

September 30, 2012:

Buy Currency	Notional Amount of Buy Currency in U.S. Dollars		Sell Currency	Maturity	Notional Amount of Sell Currency in U.S. Dollars		Fair Value of Assets		Fair Value of Liabilities
U.S. Dollar	$	2,791	Taiwan Dollar	October 2012	$	2,786	$	5	$	—
U.S. Dollar	1,842		Israeli Shekel	October 2012	1,854		—		12
U.S. Dollar	1,058		Singapore Dollar	October 2012	1,056		2		—
U.S. Dollar	806		Korean Won	October 2012	803		3		—
U.S. Dollar	611		Japanese Yen	October 2012	611		—		—
U.S. Dollar	524		British Pound	October 2012	525		—		1
	$	7,632			$	7,635	$	10	$	13