Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities:
Net income	$ 22,932	$ 25,929
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation & amortization	1,459	1,051
Deferred income taxes	191	865
Net realized (gains) losses	(1,597)	(5,596)
Net other-than-temporary impairments recognized in earnings	0	0
Changes in assets and liabilities:
Reinsurance recoverable on paid and unpaid losses and loss adjustment expenses	9,640	18,056
Reserves for losses and loss adjustment expenses	9,204	(17,930)
Prepaid reinsurance premiums	11,891	(6,374)
Unearned premiums	43,571	60,393
Premiums receivable	(72,300)	(53,878)
Deferred policy acquisition costs	(13,376)	(6,769)
Accrued investment income	(450)	106
Reinsurance balances payable	15,753	1,445
Current income tax payable, net	9,291	9,388
Accounts payable	(10,830)	(31,229)
Other	13,169	(372)
Net cash provided by (used in) operating activities	38,548	(4,915)
Fixed maturities
Redemptions and maturities	44,996	37,241
Sales	98,680	119,505
Purchases	(177,719)	(130,196)
Equity securities
Sales	10,724	38,343
Purchases	(15,601)	(12,320)
Change in payable for securities	(1,472)	15,565
Net change in short-term investments	6,146	(63,168)
Purchase of property and equipment	(2,452)	(790)
Net cash provided by (used in) investing activities	(36,698)	4,180
Financing activities:
Proceeds of stock issued from employee stock purchase plan	867
Net cash provided by (used in) financing activities	867
Change in cash	2,717	(735)
Cash at beginning of year	69,901	90,751
Cash at end of period	72,618	90,016
Supplemental cash information:
Income taxes paid, net	40	1,793
Issuance of stock to directors	$ 633	$ 563