Consolidated Statements of Cash Flow (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flow from operating activities:
Net earnings	$ 12,476	$ 12,926
Adjustments to reconcile net earnings to net cash provided by operating activities:
Realized gains on sale of investments	(11,302)	(1,520)
Depreciation and amortization expense	1,282	1,402
Stock based compensation expense	1,148	1,119
Amortization of deferred acquisition costs, net	(2,419)	(5,187)
Amortization of premiums on investments	1,942	510
Deferred income taxes	(1,237)	(887)
Change in operating assets and liabilities:
Accrued investment income	346	(279)
Premiums receivable	(14,114)	(8,320)
Reinsurance recoverable	7,170	(15,701)
Ceded unearned premiums	(724)	19,452
Funds held	6,103	7,219
Unpaid loss and loss adjustment expenses	18,003	31,488
Unearned premiums	13,643	(3,106)
Ceded premiums payable	3,563	1,241
Other liabilities	(2,947)	(2,407)
Other assets, net	1,671	(2,675)
Net cash provided by operating activities	34,604	35,275
Cash flow from investing activities:
Purchases of fixed maturities	(248,114)	(168,989)
Purchase of common stock	(2,500)
Proceeds from sales and maturities of fixed maturities	184,077	109,380
Proceeds from sale of equity securities	656
Decrease in short-term investments	25,397	34,549
Purchase of fixed assets, net	(2,022)	(2,404)
Net cash used in investing activities	(42,506)	(27,464)
Cash flow from financing activities:
Stock repurchase payments	(2,286)	(2,883)
Proceeds from exercised stock options	460	231
Proceeds from termination of interest rate swaps		2,055
Net cash used in financing activities	(1,826)	(597)
Net (decrease) increase in cash and cash equivalents	(9,728)	7,214
Cash and cash equivalents at beginning of period	38,307	34,756
Cash and cash equivalents at end of period	28,579	41,970
Supplemental disclosure of cash flow information:
Income taxes paid	80	10
Interest paid	$ 741	$ 1,372