Derivative Instruments and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2013

Derivative Instruments and Hedging Activities

Fair value of derivative instruments

	Asset Derivatives
	December 31, 2012			September 30, 2013
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Foreign exchange contracts	Prepaid expenses and other	$	—	Prepaid expenses and other	$	85
Total		$	—		$	85

	Liability Derivatives
	December 31, 2012			September 30, 2013
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Foreign exchange contracts	Accrued expenses	$	1,522	Accrued expenses	$	7,059
Total		$	1,522		$	7,059

Fair value of derivative instruments, amount of (gain) loss recognized in income

		Amount of (Gain) Loss Recognized in Income on Derivatives
		Three Months Ended September 30,				Nine Months Ended September 30,
	Location of (Gain) Loss Recognized in Income on Derivative
Derivatives Not Designated as Hedging Instruments		2012		2013		2012		2013
Foreign exchange contracts	Other expense (income), net	$	7,649	$	14,164	$	11,927	$	(6,059	)
Total		$	7,649	$	14,164	$	11,927	$	(6,059	)