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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 148,471	$ 311,557
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) arising during the period	71,383	(18,525)
Adjustment for reclassification of net realized investment gains and OTTI losses recognized in net income	(9,613)	(33,848)
Unrealized gains (losses) arising during the period, net of reclassification adjustment	61,770	(52,373)
Non-credit portion of OTTI losses	0	0
Foreign currency translation adjustment	2,659	(141)
Total other comprehensive income (loss), net of tax	64,429	(52,514)
Comprehensive income	$ 212,900	$ 259,043

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities and for unrealized loss realized upon the write-down of available-for-sale securities.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.

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