INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2012

Available-For-Sale Securities

The following is a summary of our available-for-sale securities at December 31, 2012:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In thousands)
Mutual funds(1)	$	1,975	$	48	$	—		$	2,023
Commercial paper(5)		29,728		9		—			29,737
Asset-backed securities and collateralized mortgage obligations(2)(3)		10,853		—		(2,376	)		8,477
Corporate notes and bonds(4)		5,750		5		—			5,755
Total	$	48,306	$	62	$	(2,376	)	$	45,992

(1) Various U.S. equities and other investments managed under mutual funds.

(2) Included in our asset-backed securities and collateralized mortgage obligations is approximately $6.3 million of commercial paper secured by mortgaged-backed securities.

(3) Asset-backed and mortgage-backed securities with maturities of up to 26 years.

(4) Corporate notes and bonds with maturities of three years or less.

(5) Commercial paper with maturities less than one year.

The following is a summary of our available-for-sale securities at December 31, 2011:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In thousands)
Mutual funds(1)	$	1,975	$	—	$	(52	)	$	1,923
Commercial paper(5)		123,195		22		(7	)		123,210
Asset-backed securities and collateralized mortgage obligations(2)(3)		12,489		—		(4,358	)		8,131
Corporate notes and bonds(4)		5,750		—		(8	)		5,742
Total	$	143,409	$	22	$	(4,425	)	$	139,006

(1) Various U.S. equities and other investments managed under mutual funds.

(2) Included in our asset-backed securities and collateralized mortgage obligations is approximately $7.4 million of commercial paper secured by mortgaged-backed securities.

(3) Asset-backed and mortgage-backed securities with maturities of up to 26 years.

(4) Corporate notes and bonds with maturities of three years or less.

(5) Commercial paper with maturities less than one year.

Proceeds, Gross Realized Gains and Gross Realized Losses on Sales of Available-For-Sale Securities

Proceeds, gross realized gains and gross realized losses on sales of available-for-sale securities were as follows:

	Proceeds		Gross Realized  Gains		Gross Realized  Losses
	(In thousands)
Year Ended December 31, 2012	$	191,298	$	—	$	—
Year Ended December 31, 2011	$	693,424	$	—	$	20
Year Ended December 31, 2010	$	1,363,803	$	—	$	91