CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net income (loss)	$ 80,882	$ 110,510	$ (109,270)	$ 126,385
Net unrealized appreciation of investments, net of tax:
Net unrealized holding losses of fixed maturities on which other-than-temporary impairments were taken				(6,713)
Net unrealized holding gains on all other securities	169,954	45,687	159,641	31,414
Reclassification adjustment for gains included in net income (loss)	(8,135)	(6,258)	(66,245)	(19,370)
Deferred income tax charge	(56,637)	(13,800)	(32,689)	(1,866)
Total net unrealized appreciation of investments, net of tax	105,182	25,629	60,707	3,465
Change in retirement plan liability, net of tax:
Change in retirement plan liability	(60)		(912)
Deferred income tax benefit	21		319
Total change in retirement plan liability, net of tax	(39)		(593)
Net unrealized currency translation gain (loss), net of tax:
Net unrealized currency translation gain (loss)	23,155	(59,490)	31,161	58,708
Deferred income tax (charge) benefit	(8,104)	20,822	(10,906)	(20,548)
Total net unrealized currency translation gain, net of tax	15,051	(38,668)	20,255	38,160
Other comprehensive income (loss)	120,194	(13,039)	80,369	41,625
Comprehensive income (loss)	$ 201,076	$ 97,471	$ (28,901)	$ 168,010