CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities:
Net Income (Loss)	$ 569,037	$ 578,294
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,128	14,403
Deferred tax expense (benefit)	17,273	2,744
Equity compensation	18,776	24,843
Net (gains) losses on investments and other financial instruments	523	8,202
Change in certain assets and liabilities:
Accrued investment income	4,376	(635)
Reinsurance recoverable on loss reserves	(10,284)	(12,025)
Reinsurance recoverable on paid losses	1,845	8,904
Premiums receivable	1,005	374
Deferred insurance policy acquisition costs	2,300	2,083
Loss reserves	(10,502)	(44,805)
Unearned premiums	(21,833)	(28,228)
Return premium accrual	(1,813)	(6,700)
Current income taxes	69,697	35,944
Other, net	(24,482)	(40,744)
Net cash provided by (used in) operating activities	622,046	542,654
Cash flows from investing activities:
Purchases of investments	(1,255,609)	(1,114,276)
Proceeds from sales of investments	59,796	29,742
Proceeds from maturity of fixed income securities	1,329,059	962,952
Additions to property and equipment	(424)	(660)
Net cash provided by (used in) investing activities	132,822	(122,242)
Cash flows from financing activities:
Repurchase of common stock	(599,453)	(374,814)
Dividends paid	(99,101)	(97,587)
Payment of withholding taxes related to share-based compensation net share settlement	(19,149)	(19,046)
Net cash provided by (used in) financing activities	(717,703)	(491,447)
Net increase (decrease) in cash and cash equivalents and restricted cash and cash equivalents	37,165	(71,035)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	234,627	370,644
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 271,792	$ 299,609