FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2012

Cash And Cash Equivalents And Investments From Continuing Operations

Cash and cash equivalents and investments from our continuing operations consist of the following as of September 30, 2012 and December 31, 2011:

	September 30, 2012
			(Dollars in thousands) Gross Unrealized
	Cost		Gain		(Loss)			Fair Value
Cash and cash equivalents:
Cash	$	211,098	$	—	$	—		$	211,098
Money market funds		31,730		—		—			31,730
Total cash and cash equivalents		242,828		—		—			242,828
Short-term investments (available-for-sale):
U.S. Treasury bills		103,984		—		(11	)		103,973
U.S. Government Agencies		26,523		—		(1	)		26,522
Total short-term investments (available-for-sale)		130,507		—		(12	)		130,495
Total cash and cash equivalents and short-term investments	$	373,335	$	—	$	(12	)	$	373,323
Long-term investments (available-for-sale):
Municipal bonds	$	11,150	$	—	$	(535	)	$	10,615

	December 31, 2011
			(Dollars in thousands) Gross Unrealized
	Cost		Gain		(Loss)			Fair Value
Cash and cash equivalents:
Cash	$	157,317	$	—	$	—		$	157,317
Money market funds		122,827		448		—			123,275
Total cash and cash equivalents		280,144		448		—			280,592
Short-term investments (available-for-sale):
U.S. Treasury bills		133,648		31		(5	)		133,674
U.S. Government Agencies		26,962		—		(29	)		26,933
Total short-term investments (available-for-sale)		160,610		31		(34	)		160,607
Total cash and cash equivalents and short-term investments	$	440,754	$	479	$	(34	)	$	441,199
Long-term investments (available-for-sale):
Municipal bonds	$	11,150	$	—	$	(735	)	$	10,415

Investments Measured At Fair Value On A Recurring Basis

Investments measured at fair value on a recurring basis subject to the disclosure requirements issued by FASB ASC Topic 820 – Fair Value Measurements at September 30, 2012 and December 31, 2011 were as follows:

	As of September 30, 2012
			(Dollars in thousands)
	Level 1		Level 2		Level 3		Total
Municipal bonds	$	—	$	—	$	10,615	$	10,615
U.S. Treasury bills		103,973		—		—		103,973
U.S. Government Agencies		26,522		—		—		26,522
Totals	$	130,495	$	—	$	10,615	$	141,110
	As of December 31, 2011
			(Dollars in thousands)
	Level 1		Level 2		Level 3		Total
Municipal bonds	$	—	$	—	$	10,415	$	10,415
U.S. Treasury bills		133,674		—		—		133,674
U.S. Government Agencies		26,933		—		—		26,933
Totals	$	160,607	$	—	$	10,415	$	171,022

Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3)

The following table presents a rollforward of our assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as defined in FASB ASC Topic 820 for the year to date ended September 30, 2012:

	(Dollars in thousands)
Balance at December 31, 2011	$	10,415
Unrealized gain		200
Balance at September 30, 2012	$	10,615