Quarterly Results of Operations (Tables)

12 Months Ended

Dec. 31, 2013

QuarterlyFinancialDataAbstract

ScheduleOfQuarterlyFinancialInformationTableTextBlock

	Three months ended
		March 31		June 30		September 30		December 31
2013	(in thousands)
Total revenues	$	290,576	$	283,524	$	250,028	$	286,154
Total benefits and expenses		93,190		96,720		(332,523)		72,431
Income (loss) from operations before income taxes and cumulative effect of accounting change		197,386		186,804		582,551		213,723
Net income (loss)	$	147,388	$	143,670	$	400,296	$	156,738

	Three months ended
		March 31		June 30		September 30		December 31
	(in thousands)
2012
Total revenues	$	313,201	$	375,418	$	280,135	$	310,807
Total benefits and expenses		(217,998)		716,619		(131,867)		55,114
Income (loss) from operations before income taxes and cumulative effect of accounting change		531,199		(341,201)		412,002		255,693
Net income (loss)	$	372,347	$	(237,147)	$	309,747	$	189,112