Derivative Instruments (Tables)

6 Months Ended

Mar. 31, 2015

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 do not qualify for hedge accounting at March 31, 2015 and September 30, 2014 (in thousands):

March 31, 2015:

Buy Currency	Notional Amount of Buy Currency	Sell Currency	Maturity	Notional Amount of Sell Currency	Fair Value of Assets		Fair Value of Liabilities
U.S. Dollar	1,343	Japanese Yen	April to June 2015	160,000	$	5	$	—
British Pound	1,098	Euro	April 2015	1,500	—		7
U.S. Dollar	673	Taiwan Dollar	April 2015	21,000	2		—
U.S. Dollar	1,248	British Pound	April 2015	840	—		1
Euro	5,100	U.S. Dollar	April 2015	5,560	23
Korean Won	330,000	U.S. Dollar	April 2015	299	—		—
U.S. Dollar	403	Japanese Yen	April 2015	48,000	1		—
U.S. Dollar	603	Israeli Shekel	April 2015	2,400	—		7
					$	31	$	15

September 30, 2014:

Buy Currency	Notional Amount of Buy Currency	Sell Currency	Maturity	Notional Amount of Sell Currency	Fair Value of Assets		Fair Value of Liabilities
U.S. Dollar	1,736	Japanese Yen	October 2014 to December 2014	190,000	$	—	$	11
U.S. Dollar	1,395	Euro	October 2014	1,100	—		16
U.S. Dollar	656	Taiwan Dollar	October 2014	20,000	—		5
U.S. Dollar	650	British Pound	October 2014	400	—		5
U.S. Dollar	731	Israeli Shekel	October 2014	2,700	—		5
U.S. Dollar	76	Korean Won	October 2014	80,000	—		1
British Pound	3,513	Euro	October 2014	4,500	—		15
					$	—	$	58

Schedule of Net Gains and Losses Realized on Derivative Instruments

Net gains and losses recorded as a component of "Other income, net" in the Consolidated Statements of Operations related to these contracts for the three and six months ended March 31, 2015 and 2014 is as follows (in thousands):

	Three months ended March 31,					Six months ended March 31,
	2015		2014			2015		2014
Realized gains (losses) on derivative instruments not designated as hedging instruments	$	126	$	(154	)	$	426	$	(107	)