Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Operating activities
Net earnings	$ 116,468	$ 154,734
Adjustments to reconcile net earnings to net cash provided by operating activities
Change in premium, claims and other receivables	(103,245)	(79,735)
Change in reinsurance recoverables	(84,728)	(60,013)
Change in ceded unearned premium	36,870	(4,630)
Change in loss and loss adjustments expense payable	147,870	99,370
Change in unearned premium	63,015	32,541
Change in reinsurance, premium and claims payable, excluding restricted cash	(30,413)	12,380
Change in accounts payable and accrued liabilities	(19,426)	(15,389)
Stock-based compensation expense	7,137	6,937
Depreciation and amortization expense	8,769	8,249
(Gain) loss on investments	2,984	(7,329)
Other, net	(23,517)	(7,789)
Cash provided by operating activities	121,784	139,326
Investing activities
Proceeds from sales of available for sale fixed income securities	246,331	133,856
Maturity or call of available for sale fixed income securities	285,637	260,053
Maturity or call of held to maturity fixed income securities	24,932	25,253
Cost of available for sale fixed income securities acquired	(835,368)	(703,341)
Cost of held to maturity fixed income securities acquired		(96,383)
Cost of other investments acquired	(27,784)
Change in short-term investments	292,365	320,927
Payments for purchase of businesses, net of cash received	(1,892)	(36,348)
Proceeds from sale of subsidiaries and other investments	944	19,855
Other, net	(11,886)	(9,405)
Cash used by investing activities	(26,721)	(85,533)
Financing activities
Advances on line of credit	95,000
Payments on convertible notes		(64,472)
Sale of common stock	35,236	10,143
Purchase of common stock	(200,302)	(472)
Dividends paid	(33,305)	(30,983)
Other, net	(2,307)	(13,307)
Cash used by financing activities	(105,678)	(99,091)
Net decrease in cash	(10,615)	(45,298)
Cash at beginning of year	97,857	129,460
Cash at end of period	$ 87,242	$ 84,162

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The cash inflow associated with the sale of debt securities classified as available-for-sale securities.

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