FAIR VALUE OF ASSETS AND LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2011

FAIR VALUE OF ASSETS AND LIABILITIES

Investments measured at fair value on a recurring basis

The table below presents the balances of investments measured at fair value on a recurring basis at December 31, 2011:

	December 31, 2011
	Total		Level 1		Level 2		Level 3
	(In thousands)
Assets
Cash
Money market funds	$	18,164	$	18,164	$	—	$	—
Short-term investments
Corporate equity securities		—		—		—		—
Corporate debt securities, including U.S. government-backed securities		3,079		—		3,079		—
Other assets								—
Auction-rate securities		2,251		—		—		2,251
Deferred compensation plan assets		4,899		4,899		—		—
Total	$	28,393	$	23,063	$	3,079	$	2,251

	December 31, 2010
	Total		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash
Money market funds	$	—	$	—	$	—	$	—
Short-term investments
Corporate equity securities		158		158		—		—
Corporate debt securities, including U.S. government-backed securities		19,416		—		19,416		—
Other assets								—
Auction-rate securities		2,251		—		—		2,251
Deferred compensation plan assets		3,783		3,783		—		—
Total	$	25,608	$	3,941	$	19,416	$	2,251

Summary of the changes in Level 3 assets measured at fair value on a recurring basis

A summary of the changes in Level 3 assets measured at fair value on a recurring basis is as follows:

	Balance at January 1, 2011		Total Unrealized Gains		Sales and Other Settlements		Balance at December 31, 2011
	(in thousands)
Auction-rate securities	$	2,251	$	—	$	—	$	2,251
Total	$	2,251	$	—	$	—	$	2,251

	Balance at January 1, 2010		Total Unrealized Gains		Sales and Other Settlements			Balance at December 31, 2010
	(in thousands)
Auction-rate securities	$	5,392	$	9	$	(3,150	)	$	2,251
Total	$	5,392	$	9	$	(3,150	)	$	2,251