CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Tax expense (benefit), change in net unrealized gains (losses) on investments	$ (322)		$ 12,806		$ 8,251		$ 20,160
Tax (benefit) expense change in foreign currency translation (losses) gains	(273)		(165)		86		69
Disclosure of reclassification amount, net of tax:
Unrealized gains (losses) on investments arising during period	411		26,588		15,986		51,784
Reclassification adjustment for net realized gains (losses) included in net income	(1,025)		(2,939)		264		(14,075)
Reclassification adjustment for other-than-temporary impairment losses recognized in net income	103		455		110		615
Change in net unrealized gains (losses) on investments, net of tax	$ (511)	[1]	$ 24,104	[1]	$ 16,360	[2]	$ 38,324	[2]

[1] Disclosure of reclassification amount, net of tax: Unrealized gains (losses) on investments arising during period $ 411 $ 26,588 Reclassification adjustment for net realized gains (losses) included in net income (1,025 ) (2,939 ) Reclassification adjustment for other-than-temporary impairment losses recognized in net income 103 455 Change in net unrealized gains (losses) on investments, net of tax $ (511 ) $ 24,104

[2] Disclosure of reclassification amount, net of tax: Unrealized gains (losses) on investments arising during period $ 15,986 $ 51,784 Reclassification adjustment for net realized gains (losses) included in net income 264 (14,075 ) Reclassification adjustment for other-than-temporary impairment losses recognized in net income 110 615 Change in net unrealized gains (losses) on investments, net of tax $ 16,360 $ 38,324