Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Measurement [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

(In thousands)			Fair Value Measurements at September 30, 2014
			Quoted Prices in		Significant Other		Significant
			Active Markets for		Observable		Unobservable
			Identical Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Short-term investments	$	196,619	$	—	$	196,619	$	—
Liabilities:
Foreign currency forward exchange contracts not accounted for using hedge accounting		703		—		703		—

(In thousands)			Fair Value Measurements at December 31, 2013
			Quoted Prices in		Significant Other		Significant
			Active Markets for		Observable		Unobservable
			Identical Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Short-term investments	$	181,677	$	—	$	181,677	$	—
Foreign currency forward exchange contracts not accounted for using hedge accounting		157		—		157		—
	$	181,834	$	—	$	181,834	$	—