Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Measurements [Abstract]

Assets And Liabilities Measured On Recurring Basis

(In thousands)		Fair Value Measurements at Reporting Date Using
Description		December 31, 2012		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	$	20,656	$	20,656	$	-	$	-
U.S. treasuries and agencies		-		-		-		-
Short-term investments available for sale:
Municipal bonds		1,466		-		1,466		-
Corporate bonds		7,778		-		7,778		-
U.S. treasuries and agencies		135,925		-		135,925		-
Foreign government bonds		25,085		-		25,085		-
Time deposits		2,912		2,912		-		-
Derivatives		4,246		-		4,246		-
Total Assets	$	198,068	$	23,568	$	174,500	$	-
Liabilities
Derivatives	$	(2,804)	$	-	$	(2,804)	$	-
Total Liabilities	$	(2,804)	$	-	$	(2,804)	$	-
(In thousands)		Fair Value Measurements at Reporting Date Using
Description		December 31, 2011		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	$	22,677	$	22,677	$	-	$	-
U.S. Treasuries and Agencies		13,500		-		13,500		-
Short-term investments available for sale:
Municipal bonds		12,392		-		12,392		-
Corporate bonds		18,564		-		18,564		-
U.S. treasuries and agencies		157,419		-		157,419		-
Foreign government bonds		32,217		-		32,217		-
Time deposits		2,912		2,912		-		-
Derivatives		4,297		-		4,297		-
Total Assets	$	263,978	$	25,589	$	238,389	$	-
Liabilities
Derivatives	$	(4,542)	$	-	$	(4,542)	$	-
Total Liabilities	$	(4,542)	$	-	$	(4,542)	$	-