Note 7 - Investments (Tables)

12 Months Ended

Dec. 31, 2011

Note 7 - Investments [Abstract]

Fair value of short and long-term investments classified as available for sale

At December 31, 2011 and 2010, the estimated fair value of our short-term and long-term investments classified as available for sale, are as follows:

	December 31, 2011
	Gross Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In thousands)
Short-term investments:
Restricted cash	$	19,490	$	—	$	—		$	19,490
Corporate debt securities	447,804		1,075		(384		)	448,495
Government and agency securities	42,071		17		(2		)	42,086
Time deposits and other	81,883		—		—			81,883
Equity instruments	8,507		637,840		—			646,347
	$	599,755	$	638,932	$	(386	)	$	1,238,301
Long-term investments:
Restricted cash	$	1,342	$	—	$	—		$	1,342
Corporate debt securities	2,237,395		6,335		(58,026		)	2,185,704
Government and agency securities	70,015		1,131		(1		)	71,145
	$	2,308,752	$	7,466	$	(58,027	)	$	2,258,191

	December 31, 2010
	Gross Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In thousands)
Short-term investments:
Restricted cash	$	20,351	$	—	$	—		$	20,351
Corporate debt securities	371,998		391		(164		)	372,225
Government and agency securities	66,437		98		(1		)	66,534
Time deposits and other	44,772		—		—			44,772
Equity instruments	8,507		533,014		—			541,521
	$	512,065	$	533,503	$	(165	)	$	1,045,403
Long-term investments:
Restricted cash	$	1,332	$	—	$	—		$	1,332
Corporate debt securities	1,606,723		4,541		(5,494		)	1,605,770
Government and agency securities	152,170		149		(1,353		)	150,966
	$	1,760,225	$	4,690	$	(6,847	)	$	1,758,068

Fair value and gross unrealized losses of short-term and long-term investments aggregated by type of investment and length of time in continuous unrealized loss position

The following table summarizes the fair value and gross unrealized losses of our short-term and long-term investments, aggregated by type of investment instrument and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2011 (in thousands):

	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Corporate debt securities	$	2,614,561	$	(57,523	)	$	19,638	$	(887	)	$	2,634,199	$	(58,410	)
Government and agency securities	113,231		(3		)	—		—			113,231		(3		)
	$	2,727,792	$	(57,526	)	$	19,638	$	(887	)	$	2,747,430	$	(58,413	)

Estimated fair values of short and long-term investments classified by date of contractual maturity

The estimated fair values of our short-term and long-term investments classified as available for sale by date of contractual maturity at December 31, 2011 are as follows (in thousands):

	December 31, 2011
One year or less (including restricted cash of $19,490)	$	1,238,301
One year through two years	1,001,970
Two years through three years	727,175
Three years through four years	328,229
Four years through five years	200,817
	$	3,496,492