Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 18,417	$ 9,662
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization expense	2,346	2,822
Deferred federal income taxes	(1,311)	(182)
Net realized (gains) losses	(3,688)	122
Share-based payments expense	526	87
Change in ceded unearned premiums	(10,739)	(17,001)
Change in premiums receivable	(15,874)	(11,315)
Change in accounts receivable	900	(372)
Change in deferred policy acquisition costs	(364)	1,921
Change in unpaid losses and loss adjustment expenses	36,248	32,112
Change in unearned premiums	21,764	19,881
Change in reinsurance recoverable	(6,623)	(28,619)
Change in reinsurance balances payable	6,429	12,049
Change in current federal income tax payable	(446)	(1,407)
Change in all other liabilities	(3,599)	941
Change in all other assets	(885)	1,009
Net cash provided by operating activities	43,101	21,710
Cash flows from investing activities:
Purchases of property and equipment	(2,569)	(809)
Net transfers from restricted cash	(6,611)	(4,692)
Purchases of investment securities	(167,677)	(108,753)
Maturities, sales and redemptions of investment securities	98,344	113,758
Net cash used in investing activities	(78,513)	(496)
Cash flows from financing activities:
Activity under revolving credit facility, net		(1,473)
Payment of contingent consideration	(1,216)
Proceeds from exercise of employee stock options	602	15
Purchase of treasury shares	(1,910)	(1,395)
Net cash used in financing activities	(2,524)	(2,853)
(Decrease) increase in cash and cash equivalents	(37,936)	18,361
Cash and cash equivalents at beginning of period	130,985	141,666
Cash and cash equivalents at end of period	93,049	160,027
Supplemental cash flow information:
Interest paid	3,043	3,435
Income taxes paid	10,139	5,109
Supplemental schedule of non-cash investing activities:
Change in receivable for securities related to investment disposals that settled after the balance sheet date	1,422	1,505
Change in payable for securities related to investment purchases that settled after the balance sheet date	$ (2,948)	$ (9,880)