Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2011

Summary of significant accounting policies [Abstract]

Schedule of Earnings Per Share

The following is a reconciliation of the weighted average number of shares; however for the years ended December 31, 2011, 2010 and 2009, common stock equivalents of 55.6 million, 47.4 million and 37.6 million, respectively, were not included because they were anti-dilutive.

	Years Ended December 31,
	2011			2010			2009
	(In thousands, except per share data)
Basic loss per share:
Average common shares outstanding		201,019			176,406			124,209
Net loss	$	(485,892	)	$	(363,735	)	$	(1,322,277	)
Basic loss per share	$	(2.42	)	$	(2.06	)	$	(10.65	)
Diluted loss per share:
Weighted-average shares - Basic		201,019			176,406			124,209
Common stock equivalents		-			-			-
Weighted-average shares - Diluted		201,019			176,406			124,209
Net loss	$	(485,892	)	$	(363,735	)	$	(1,322,277	)
Diluted loss per share	$	(2.42	)	$	(2.06	)	$	(10.65	)

Schedule of Comprehensive Income (Loss)

Our total other comprehensive income was as follows:

	Years Ended December 31,
	2011			2010			2009
	(In thousands)
Net loss	$	(485,892	)	$	(363,735	)	$	(1,322,277	)
Other comprehensive income (loss)		7,988			(52,019	)		180,944
Total other comprehensive loss	$	(477,904	)	$	(415,754	)	$	(1,141,333	)
Other comprehensive income (loss) (net of tax):
Change in unrealized gains and losses on investments	$	21,057		$	(69,074	)	$	154,358
Noncredit component of impairment loss		-			-			(1,764	)
Amortization related to benefit plans		(12,862	)		6,390			10,704
Unrealized foreign currency translation adjustment		(207	)		10,665			17,646
Other comprehensive income (loss)	$	7,988		$	(52,019	)	$	180,944

Accumulated Other Comprehensive Income

Our total accumulated other comprehensive income was as follows:

	December 31,
	2011			2010
	(In thousands)
Accumulated other comprehensive income (loss):
Unrealized gains (losses) on investments	$	53,561		$	32,503
Defined benefit plans		(43,642	)		(30,780	)
Foreign currency translation adjustment		20,205			20,413
Total accumulated other comprehensive income	$	30,124		$	22,136