Fair Value Measurements And Marketable Securities(Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Measurements And Marketable Securities [Abstract]

Assets And Liabilities Measured At Fair Value On Recurring Basis

			Fair Value Measured Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Cash & cash equivalents	$	43,096	$	43,096	$	-	$	-
Available-for-sale marketable securities
Common stock	$	39,016	$	39,016	$	-	$	-
Time deposits	$	26,050	$	26,050	$	-	$
Corporate debt obligations	$	10,514	$	-	$	10,514	$	-
Government debt obligations	$	21,151	$	-	$	21,151	$	-
Government sponsored debt obligations	$	7,237	$	-	$	7,237	$	-
U.S. Treasury obligations	$	4,010	$	-	$	4,010	$
Foreign currency exchange contract asset	$	3,518	$	3,518	$	-	$	-
Foreign currency exchange contract liability	$	(40)	$	(40)	$	-	$	-

Schedule Of Marketable Securities

				2013						2012
			Gross						Gross
			Unrealized		Estimated				Unrealized		Estimated
	Cost		Gain (Loss) (3)		Fair Value		Cost		Gain (Loss) (3)		Fair Value
Securities in unrealized gain
position:
Common stock	$	21,430	$	17,586	$	39,016	$	22,376	$	13,049	$	35,425
Corporate debt obligations		5,182		7		5,189		4,211		4		4,215
Government debt
obligations (1)		19,191		18		19,209		4,495		14		4,509
GSE (2) debt obligations		-		-		-		3,501		-		3,501
U.S. Treasury
obligations		2,005		-		2,005		4,023		-		4,023
Subtotal		47,808		17,611		65,419		38,606		13,067		51,673
Securities in unrealized loss
position:
Corporate debt obligations		5,332		(7)		5,325		4,844		(7)		4,837
Government debt
obligations		1,942		-		1,942		-		-		-
GSE debt obligations		7,242		(5)		7,237		-		-		-
U.S. Treasury
obligations		2,005		-		2,005		8,251		(1)		8,250
Subtotal		16,521		(12)		16,509		13,095		(8)		13,087
Securities at amortized cost:
Time deposits		26,050		-		26,050		16,920		-		16,920
Corporate debt obligations		-		-		-		790		-		790
Subtotal		26,050		-		26,050		17,710		-		17,710
Total marketable securities	$	90,379	$	17,599	$	107,978	$	69,411	$	13,059	$	82,470

(1) State and municipal government debt obligations.

(2) Government sponsored enterprise. 

(3) Unrealized gains or losses of less than $1,000 for each category are reflected as a dash. 

Investments Classified by Contractual Maturity Date

				Estimated
		Cost		Fair Value
Due in one year or less	$	54,356	$	54,364
Due between one and three years		14,593		14,598
		68,949		68,962
Common stock		21,430		39,016
	$	90,379	$	107,978

Schedule Of Unrealized Loss On Investments

		Less Than 12 Months				12 Months or Greater				Total
			Unrealized				Unrealized				Unrealized
	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
Corporate debt obligations	$	4,322	$	(7)	$	1,003	$	-	$	5,325	$	(7)
Government debt
obligations		1,942		-		-		-		1,942		-
GSE (1) debt obligations		-		-		7,237		(5)		7,237		(5)
U.S. Treasury
obligations		2,005		-		-		-		2,005		-
Total (2)	$	8,269	$	(7)	$	8,240	$	(5)	$	16,509	$	(12)

(1) Government sponsored enterprise. 

(2) As of March 31, 2013, we had 11 securities in an unrealized loss position.