FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2011

Available-for-Sale Securities Measured at Fair Value

The following tables summarize our available-for-sale securities measured at fair value:

	September 30, 2011		Level 1		Level 2		Level 3
	(Unaudited) (In thousands)
Mutual funds(1)	$	1,831	$	—	$	1,831	$	—
Commercial paper		158,924		—		158,924		—
U.S. Government and agency securities(2)		25,900		25,900		—		—
Asset-backed securities and collateralized mortgage obligations(3)		14,291		—		7,888		6,403
Total	$	200,946	$	25,900	$	168,643	$	6,403

	December 31, 2010		Level 1		Level 2		Level 3
	(In thousands)
Mutual funds	$	2,007	$	—	$	2,007	$	—
U.S. Government and agency securities		269,161		269,161		—		—
Asset-backed securities and collateralized mortgage obligations		9,869		—		2,497		7,372
Corporate notes and bonds		4,168		—		4,168		—
Total	$	285,205	$	269,161	$	8,672	$	7,372

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

⁽²⁾  Investments in U.S. Treasury securities with maturities of two years or less.

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

Changes in Level 3 Instrument Measured on a Recurring Basis

The following is a summary of the changes in our Level 3 instrument measured on a recurring basis for the three-month and nine-month periods ended September 30, 2011 and 2010:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
	(Unaudited) (In thousands)
Balance at beginning of period	$	7,072		$	7,487		$	7,372		$	7,326
Total realized and unrealized gains (losses)		(318	)		212			147			1,489
Purchases, issuances and settlements		—			283			—			172
Principal repayments		(351	)		(549	)		(1,116	)		(1,554	)
Balance at end of period	$	6,403		$	7,433		$	6,403		$	7,433

Estimated Fair Values of Financial Instruments

The estimated fair values of our other financial instruments are as follows:

	September 30, 2011						December 31, 2010
	Carrying Amount			Fair Value			Carrying Amount		Fair Value
	(Unaudited)
	(In thousands)
Balance Sheet Instruments
Cash and cash equivalents	$	403,589		$	403,589		$	403,463	$	403,463
Debt	$	89,093		$	90,475		$	55,295	$	56,180
Forward contracts, net	$	(8,292	)	$	(8,292	)	$	1,352	$	1,352