Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Measurements [Abstract]

Assets And Liabilities Measured On Recurring Basis

(In thousands)		Fair Value Measurements at Reporting Date Using
Description		December 31, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	124,432	$	124,432	$	-	$	-
Short-term investments available for sale:
Corporate bonds		113,076		-		113,076		-
U.S. treasuries and agencies		73,912		-		73,912		-
Foreign government bonds		7,263		-		7,263		-
Time deposits		2,912		2,912		-		-
Derivatives		16,151		-		16,151		-
Total Assets	$	337,746	$	127,344	$	210,402	$	-
Liabilities
Derivatives	$	(4,253)	$	-	$	(4,253)	$	-
Total Liabilities	$	(4,253)	$	-	$	(4,253)	$	-
(In thousands)		Fair Value Measurements at Reporting Date Using
Description		December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	88,205	$	88,205	$	-	$	-
Short-term investments available for sale:
Corporate bonds		70,616		-		70,616		-
U.S. treasuries and agencies		72,485		-		72,485		-
Foreign government bonds		17,136		-		17,136		-
Time deposits		2,912		2,912		-		-
Derivatives		6,908		-		6,908		-
Total Assets	$	258,262	$	91,117	$	167,145	$	-
Liabilities
Derivatives	$	(4,742)	$	-	$	(4,742)	$	-
Total Liabilities	$	(4,742)	$	-	$	(4,742)	$	-