Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Values of Derivative Assets and Liabilities

The fair values of derivative assets and liabilities, net, all of which are classified as Level 2 and are reported within either ‘Prepaid expenses and other assets’ or ‘Accrued expenses and other liabilities’ in the condensed consolidated balance sheets, were:

	September 30, 2018						December 31, 2017
	Derivative Assets			Derivative Liabilities			Derivative Assets			Derivative Liabilities
	(in thousands)
Forward foreign currency exchange contracts	$	1,581		$	(987	)	$	1,241		$	(1,647	)
Netting of counterparty contracts	(987		)	987			(1,241		)	1,241
Foreign currency forward contract derivatives	$	594		$	—		$	—		$	(406	)

Summary of Derivative Financial Instruments Notional Amounts on Outstanding Positions

The notional amounts of outstanding foreign currency forward exchange contracts presented below report the total U.S. Dollar equivalent position and the net contract fair values for each foreign currency position.

	September 30, 2018					December 31, 2017
	Notional		Fair Value			Notional		Fair Value
	(in thousands)
Singapore Dollar	$	36,985	$	(102	)	$	73,455	$	364
Euro	48,865		(90		)	37,718		(122		)
Japanese Yen	40,510		171			30,688		(89		)
South Korean Won	30,974		(29		)	15,888		(134		)
British Pound Sterling	50,406		12			13,233		80
Other currencies	62,452		632			53,698		(505		)
Total	$	270,192	$	594		$	224,680	$	(406	)
Latest maturity date	October 2018					January 2018

Schedule of Gains / Losses from Foreign Currency Transactions and Derivative Contracts

Amounts reported in ‘Foreign currency gains (losses), net’ in the condensed consolidated statements of operations include both realized and unrealized gains (losses) from foreign currency transactions and derivative contracts, and were:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(in thousands)
Foreign currency transaction gains (losses)	$	(1,382	)	$	(674	)	$	(894	)	$	1,120
Foreign currency forward exchange contracts gains (losses)	1,615			417			2,481			(939		)
Foreign currency gains (losses), net	$	233		$	(257	)	$	1,587		$	181