Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011		Jun. 30, 2012	Jun. 30, 2011
Net income	$ 128,988	$ 142,781	[1]	$ 247,665	$ 242,922	[1],[2]
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during period	360,468	180,776	[1]	278,837	210,211	[1]
Less: reclassification adjustment for (gains) losses on securities included in net income	(4,659)	(31,299)	[1]	(9,709)	(8,571)	[1]
Less: reclassification adjustment for amortization of (discount) and premium	(28)	(532)	[1]	(124)	(1,674)	[1]
Less: foreign exchange adjustment on securities marked to market	4,068	1,549	[1]	397	(1,617)	[1]
Unrealized gains (losses) on securities	359,849	150,494	[1]	269,401	198,349	[1]
Unrealized gains (losses) on deferred acquisition costs	(1,691)	(4,604)	[1]	6,570	(5,999)	[1]
Unrealized gains (losses) on other assets	23	(220)	[1]	1,015	(220)	[1]
Total unrealized gains (losses)	358,181	145,670	[1]	276,986	192,130	[1]
Less applicable taxes	(125,365)	(50,986)	[1]	(96,946)	(67,246)	[1]
Unrealized gains (losses), net of tax	232,816	94,684	[1]	180,040	124,884	[1]
Foreign exchange translation adjustments	(2,966)	1,356	[1]	(88)	2,227	[1]
Less applicable taxes	896	(474)	[1]	(111)	(777)	[1]
Foreign exchange translation adjustments, net of tax	(2,070)	882	[1]	(199)	1,450	[1]
Amortization of pension costs	3,603	3,042	[1]	7,109	6,084	[1]
Less applicable taxes	(1,260)	(1,063)	[1]	(2,487)	(2,129)	[1]
Amortization of pension costs, net of tax	2,343	1,979	[1]	4,622	3,955	[1]
Other comprehensive income (loss)	233,089	97,545	[1]	184,463	130,289	[1]
Comprehensive income (loss)	$ 362,077	$ 240,326	[1]	$ 432,128	$ 373,211	[1]

[1] The 2011 balances have been retrospectively adjusted to give effect to the adoption of new accounting guidance as described in Note F-Adoption of New Accounting Standard.

[2] The 2011 balances have been retroactively adjusted to give effect to the adoption of new accounting guidance as described in Note F-Adoption of New Accounting Standard.