v2.4.0.6

MARKETABLE SECURITIES (Tables)

12 Months Ended

Dec. 31, 2011

MARKETABLE SECURITIES

Schedule of available-for-sale marketable securities

At December 31, 2011, available-for-sale marketable securities are as follows:

		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Estimated Fair Value
		(In thousands)
Corporate debt securities		$	48,621		$	99		$	(15	)	$	48,705
States of the U.S. and state political subdivisions			111,758			587			(22	)		112,323
Total debt securities			160,379			686			(37	)		161,028
Equity security			4,656			11			—			4,667
Total marketable securities		$	165,035		$	697		$	(37	)	$	165,695

        At December 31, 2010, available-for-sale marketable securities are as follows:

		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Estimated Fair Value
		(In thousands)
Corporate debt securities		$	237,406		$	773		$	(16	)	$	238,163
States of the U.S. and state political subdivisions			110,478			373			(230	)		110,621
U.S. Treasury securities			199,881			18			—			199,899
Total debt securities			547,765			1,164			(246	)		548,683
Equity security			12,896			2,418			—			15,314
Total marketable securities		$	560,661		$	3,582		$	(246	)	$	563,997

Schedule of contractual maturities of debt securities classified as available-for-sale

The contractual maturities of debt securities classified as available-for-sale at December 31, 2011 are as follows:

		Amortized Cost			Estimated Fair Value
		(In thousands)
Due in one year or less		$	68,375		$	68,545
Due after one year through five years			92,004			92,483
Total		$	160,379		$	161,028

Summary of investments with continuous unrealized loss position

		December 31,
		2011						2010
		(In thousands)
		Fair Value			Gross Unrealized Losses			Fair Value			Gross Unrealized Losses
Corporate debt securities		$	12,920		$	(15	)	$	34,552		$	(16	)
States of the U.S. and state political subdivisions			11,711			(22	)		39,171			(230	)
Total		$	24,631		$	(37	)	$	73,723		$	(246	)

Schedule of proceeds from maturities and sales of available-for-sale marketable securities and the related gross realized gains and losses

		December 31,
		2011			2010			2009
		(In thousands)
Proceeds from maturities and sales of available-for-sale marketable securities		$	600,149		$	768,650		$	293,629
Gross realized gains			2,482			4,802			42,372
Gross realized losses			(41	)		(19	)		(12,414	)

X

- Definition

Tabular disclosure of available-for-sale securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt.

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