Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 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:

	June 30, 2018						December 31, 2017
	Derivative Assets			Derivative Liabilities			Derivative Assets			Derivative Liabilities
	(in thousands)
Forward foreign currency exchange contracts	$	2,439		$	(2,561	)	$	1,241		$	(1,647	)
Netting of counterparty contracts	(2,439		)	2,439			(1,241		)	1,241
Foreign currency forward contract derivatives	$	—		$	(122	)	$	—		$	(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.

	June 30, 2018					December 31, 2017
	Notional		Fair Value			Notional		Fair Value
	(in thousands)
Singapore Dollar	$	44,299	$	(1,036	)	$	73,455	$	364
Euro	26,207		342			37,718		(122		)
Japanese Yen	39,860		578			30,688		(89		)
South Korean Won	22,964		471			15,888		(134		)
British Pound Sterling	48,318		(114		)	13,233		80
Other currencies	65,351		(363		)	53,698		(505		)
Total	$	246,999	$	(122	)	$	224,680	$	(406	)
Latest maturity date	July 2018					January 2018

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

Amounts reported in ‘Foreign currency gains, 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 June 30,						Six Months Ended June 30,
	2018			2017			2018		2017
	(in thousands)
Foreign currency transaction gains (losses)	$	(563	)	$	(1,417	)	$	488	$	1,794
Foreign currency forward exchange contracts gains (losses)	846			1,579			866		(1,356		)
Foreign currency gains, net	$	283		$	162		$	1,354	$	438