CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Premiums written:
Direct	$ 283,224	$ 283,189	$ 557,948	$ 557,086
Assumed	3,899	1,505	6,758	2,612
Ceded	(65,738)	(41,096)	(97,314)	(71,819)
Net premiums written	221,385	243,598	467,392	487,879
Decrease in unearned premiums, net	22,177	3,504	37,071	8,984
Net premiums earned	243,562	247,102	504,463	496,863
Investment income, net of expenses	39,679	42,423	81,026	83,008
Net realized investment gains (losses)	6,701	307	8,592	(219)
Other revenue	4,026	2,485	6,780	4,315
Total revenues	293,968	292,317	600,861	583,967
Losses and expenses:
Losses incurred, net	217,374	21,836	278,330	60,899
Amortization of deferred policy acquisition costs	2,909	2,760	5,419	5,238
Other underwriting and operating expenses, net	44,273	42,960	86,535	88,900
Interest expense	12,929	13,550	25,855	26,783
Total losses and expenses	277,485	81,106	396,139	181,820
Income before tax	16,483	211,211	204,722	402,147
Provision for income taxes	2,436	43,433	40,870	82,428
Net income	$ 14,047	$ 167,778	$ 163,852	$ 319,719
Earnings per share:
Basic (in dollars per share)	$ 0.04	$ 0.47	$ 0.48	$ 0.90
Diluted (in dollars per share)	$ 0.04	$ 0.46	$ 0.48	$ 0.87
Weighted average common shares outstanding - basic (in shares)	338,593	355,734	341,323	355,694
Weighted average common shares outstanding - diluted (in shares)	339,661	376,603	362,003	376,635