Derivatives and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Fair Value of Forward Exchange Contracts not Designated as Hedging Instruments

The fair value of foreign exchange derivative contracts not designated as hedging instruments are summarized below:

	Year Ended December 31,
	2015		2014
	(Amounts in thousands)
Current derivative assets	$	2,364	$	11,709
Noncurrent derivative assets	—		6
Current derivative liabilities	3,196		6,168
Noncurrent derivative liabilities	441		348

Summary of Fair Value of Interest Rate Swaps and Foreign Exchange Derivative Contracts in Cash Flow Hedging Relationships

The fair value of interest rate swaps and foreign exchange derivative contracts designated as hedging instruments are summarized below:

	Year Ended December 31,
	2015		2014
	(Amounts in thousands)
Current derivative assets	$	26	$	—
Current derivative liabilities	1,448		6,952
Noncurrent derivative liabilities	—		411

Impact of Net Changes in Fair Values of Forward Exchange Contracts Not Designated as Hedging Instruments

The impact of net changes in the fair values of foreign exchange contracts are summarized below:

	Year Ended December 31,
	2015		2014		2013
	(Amounts in thousands)
Gain (loss) recognized in income	$	23,900	$	8,464	$	(4,352	)