Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Gross written premiums	$ 379,471	$ 348,795	$ 775,931	$ 771,585
Revenues:
Net written premiums	258,244	231,864	547,202	543,714
Change in unearned premiums	(15,916)	(780)	(68,742)	(87,358)
Net earned premiums	242,328	231,084	478,460	456,356
Net investment income	16,595	15,648	32,848	32,258
Net realized gains (losses):
Total other-than-temporary impairment losses	(423)		(423)
Portion of loss recognized in other comprehensive income (before tax)	0	0	0	0
Net other-than-temporary impairment losses recognized in earnings	(423)		(423)
Other realized gains (losses)	4,339	4,473	9,935	5,306
Net realized gains (losses)	3,916	4,473	9,512	5,306
Other income (loss)	(4,362)	(1,665)	(2,120)	8,734
Total revenues	258,477	249,540	518,700	502,654
Expenses:
Net losses and loss adjustment expenses	141,973	140,220	272,171	275,287
Commission expenses	31,480	32,150	64,385	57,877
Other operating expenses	52,789	47,992	107,698	95,138
Interest expense	3,856	4,319	7,711	8,171
Total expenses	230,098	224,681	451,965	436,473
Income (loss) before income taxes	28,379	24,859	66,735	66,181
Income tax expense	9,195	7,998	21,622	21,352
Net income	$ 19,184	$ 16,861	$ 45,113	$ 44,829
Net income per common share:
Basic	$ 1.33	$ 1.18	$ 3.14	$ 3.15
Diluted	$ 1.30	$ 1.17	$ 3.06	$ 3.11
Average common shares outstanding:
Basic	14,396,048	14,259,753	14,370,123	14,246,701
Diluted	14,763,002	14,377,476	14,726,282	14,401,740