CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Premiums written:
Direct	$ 1,123,117	$ 1,106,632	$ 1,124,196
Assumed	8,924	10,837	6,446
Ceded	(163,031)	(188,727)	(129,334)
Net premiums written	969,010	928,742	1,001,308
Decrease (increase) in unearned premiums	45,409	93,201	29,680
Net Amount	1,014,419	1,021,943	1,030,988
Investment income, net of expenses	156,438	154,396	167,045
Net realized investment gains (losses)	6,582	13,752	5,306
Other revenue	8,236	9,055	10,638
Total revenues	1,185,675	1,199,146	1,213,977
Losses and expenses:
Losses incurred, net	64,577	364,774	118,575
Amortization of deferred policy acquisition costs	12,602	12,380	12,001
Other underwriting and operating expenses, net	198,445	176,398	182,768
Loss on debt extinguishment	36,914	26,736	0
Interest expense	71,360	59,595	52,656
Total losses and expenses	383,898	639,883	366,000
Income before tax	801,777	559,263	847,977
Provision for income taxes	166,794	113,170	174,214
Net income	$ 634,983	$ 446,093	$ 673,763
Earnings per share:
Basic (in dollars per share)	$ 1.90	$ 1.31	$ 1.91
Diluted (in dollars per share)	$ 1.85	$ 1.29	$ 1.85
Weighted average common shares outstanding - basic (in shares)	334,330	339,953	352,827
Weighted average common shares outstanding - diluted (in shares)	351,308	359,293	373,924