Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income (loss)	$ (556,088)	$ 4,951	$ 522,120
Net income (loss) from discontinued operations	(497,167)	28,183	557,364
Noncontrolling interest	(361)	(1,319)	(871)
Net income (loss) from continuing operations	(58,921)	(23,232)	(35,244)
Adjustments to reconcile net income loss to net cash used in operating activities:
Depreciation expense	2,345	1,078	872
Amortization of bond premium and discount	(296)	9	(6,742)
Share-based compensation	9,356	12,266	11,231
Unearned premiums, net	(10,324)	27,913	14,684
Unearned premiums, net	10,779	23,737	7,900
Ceded premiums payable	23,337	9,721	17,065
Premium receivables	(11,329)	(30,225)	(13,478)
Accrued interest payable	2,560	0	0
Amortization of intangible assets	17,602	4,152	2,921
Net investment gains (losses), including impairments	497	(19)	13,710
Corporate costs reallocated to continuing operations	14,919	19,367	20,189
Other, net	237	(7,819)	37,260
Net cash provided by (used in) operating activities from continuing operations	762	36,948	70,368
Net Cash Provided by (Used in) Investing Activities [Abstract]
Proceeds from sales of bonds	5,994	1,378	53,517
Proceeds from matured bonds	21,580	15,078	18,097
Purchases of bonds	(60,470)	(33,243)	(43,489)
Proceeds from Sale and Maturity of Other Investments	625
Purchases of other investments	(2,522)	(2,242)	(4,788)
Change in short-term investments	101,829	4,157	(48,386)
Acquisitions, net of cash acquired	(243,776)	(6,953)	(18,442)
Proceeds from sale of subsidiary, net of cash transferred	14,119	0	0
Other, net	(3,750)	(4,854)	2,329
Net cash provided by (used in) investing activities from continuing operations	(166,371)	(26,679)	(41,162)
Cash flows from financing activities:
Proceeds from short-term debt	147,000	0	0
Issuance of Equity Interest in Subsidiary	62,000
Payments for Repurchase of Common Stock	(11,698)	(4,510)	(14,217)
Payment, Tax Withholding, Share-based Payment Arrangement	(692)	(4,585)	(3,576)
Distributions to noncontrolling interest holders	(2,391)	(1,891)	(1,442)
Net cash provided by (used in) financing activities from continuing operations	194,219	(10,986)	(19,235)
Net cash provided by (used in) continuing operations	28,052	(717)	9,971
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations	(558)
Cash, cash equivalents, and restricted cash at beginning of period - continuing operations	19,223	19,940	9,969
Cash, cash equivalents, and restricted cash at end of period - continuing operations	47,275	19,223	19,940
Net cash provided by (used in) operating activities from discontinued operations	33,536	163,376	1,264,975
Net cash provided by (used in) investing activities from discontinued operations	(7,911)	461,870	959,610
Net cash provided by (used in) financing activities from discontinued operations	(214,606)	(411,947)	(2,195,992)
Effect of foreign exchange on cash and cash equivalents - discontinued operations	(126)	529	(670)
Net cash provided by (used in) discontinued operations	(189,107)	213,828	27,923
Cash, cash equivalents, and restricted cash at beginning of period - discontinued operations	255,183	41,355	13,432
Cash, cash equivalents, and restricted cash at end of period - discontinued operations	$ 66,076	$ 255,183	$ 41,355