Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities
Net income	$ 29,449	$ 23,322
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	687	627
Net amortization of investments	8,246	7,389
Deferred income taxes	(662)	(3,266)
Net realized (gains)/losses on investments	2,558	(333)
Net realized losses on sale of fixed assets	1
Share-based compensation	380	423
Changes in operating assets and liabilities:
Premiums receivable, net	(24,184)	(33,534)
Accrued interest receivable	15	8
Deferred policy acquisition costs	(1,741)	(2,638)
Amounts held by others	(27,848)	(1,087)
Other assets	(1,818)	(2,240)
Reserves for loss and loss adjustment expenses	27,543	42,719
Unearned premiums	11,369	19,942
Reinsurance balances	(4,901)	(9,793)
Amounts held for others and policyholder deposits	2,295	6,175
Accounts payable and other liabilities	4,712	12,487
Net cash provided by operating activities	26,101	60,201
Investing Activities
Purchases of investments held-to-maturity	(117,104)	(82,022)
Purchases of investments available-for-sale	(59,707)	(67,029)
Purchases of short-term investments	(4,440)	(69,139)
Proceeds from maturities of investments held-to-maturity	59,268	46,614
Proceeds from sales and maturities of investments available-for-sale	39,821	33,120
Proceeds from sales and maturities of short-term investments	31,055	66,061
Purchases of property and equipment	(553)	(667)
Net cash used in investing activities	(51,660)	(73,062)
Financing Activities
Proceeds from stock option exercises	834	1,127
Tax benefit from share-based payments	1,071	1,227
Dividends to stockholders	(5,713)	(13,752)
Net cash used in financing activities	(3,808)	(11,398)
Change in cash and cash equivalents	(29,367)	(24,259)
Cash and cash equivalents at beginning of period	90,956	123,077
Cash and cash equivalents at end of period	$ 61,589	$ 98,818