Derivative Instruments (Tables)

9 Months Ended

Jun. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Net Gains and Losses Realized on Derivative Instruments

Net gains and losses related to these contracts are recorded as a component of "Other loss, net" in the accompanying unaudited Consolidated Statements of Operations and are as follows for the three and nine months ended June 30, 2017 and 2016 (in thousands):

	Three Months Ended				Nine Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Realized gains (losses) on derivatives not designated as hedging instruments	$	147	$	233	$	(450)	$	1,230

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 June 30, 2017 and September 30, 2016 (in thousands):

June 30, 2017:
	Notional Amount			Notional Amount	Fair Value of		Fair Value of
Buy Currency	of Buy Currency	Sell Currency	Maturity	of Sell Currency	Assets		Liabilities
Japanese Yen	445,000	U.S. Dollar	July 2017	3,980	$	—	$	(13)
British Pound	1,470	U.S. Dollar	July 2017	1,906		—		(16)
Korean Won	4,193,000	U.S. Dollar	July 2017	3,679		—		(10)
U.S. Dollar	5,860	Chinese Yuan	July 2017	40,000		—		(20)
Euro	11,600	U.S. Dollar	July 2017	13,229		—		(53)
British Pound	164	Norwegian Krone	July 2017	1,800		2		—
Singapore Dollar	620	U.S. Dollar	July 2017	449		—		(1)
U.S. Dollar	213	Israeli Shekel	July 2017	748		1		—
Euro	18,513	British Pound	July 2017	16,280		99		—
					$	102	$	(113)

September 30, 2016:
	Notional Amount			Notional Amount	Fair Value of		Fair Value of
Buy Currency	of Buy Currency	Sell Currency	Maturity	of Sell Currency	Assets		Liabilities
British Pound	190	Swedish Krona	October 2016	2,100	$	1	$	—
Japanese Yen	124,000	U.S. Dollar	October 2016	1,229		—		—
U.S. Dollar	6,107	British Pound	October 2016	4,710		2		—
Euro	13,300	U.S. Dollar	October 2016	14,976		—		(40)
U.S. Dollar	5,815	Chinese Yuan	October 2016	39,000		—		(33)
Korean Won	2,488,000	U.S. Dollar	October 2016	2,255		1		—
Euro	7,482	British Pound	October 2016	6,500		—		(23)
U.S. Dollar	311	Israeli Shekel	October 2016	1,169		1		—
Singapore Dollar	360	U.S. Dollar	October 2016	265		—		—
U.S. Dollar	210	Taiwanese Dollar	October 2016	6,600		—		—
British Pound	171	Norwegian Krone	October 2016	1,800		—		—
					$	5	$	(96)