CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 208,255	$ 116,407
Short-term investments	9,120	12,218
Investment securities, available-for-sale (Amortized cost: 2024: $119,528; 2023: $101,412)	118,056	100,702
Investment securities, held-to-maturity (Fair value: 2024: $6,853; 2023: $6,778)	6,923	6,902
Accrued retrospective premiums	70,607	22,076
Other receivables	22,533	16,666
Healthcare receivables	83,867	64,164
Surety bonds and deposits	740	542
Prepaid expenses	16,761	14,418
Other assets, current	4,949	1,404
Assets related to discontinued operations (Note 17)	10,926	72,471
Total current assets	552,737	427,970
Investment securities, available-for-sale (Amortized cost: 2024: $98,221; 2023: $121,868)	97,133	120,208
Investment securities, held-to-maturity (Fair value: 2024: $693; 2023: $692)	792	793
Property and equipment, net	5,209	5,082
Operating lease right-of-use assets	3,124	3,382
Other intangible assets	2,990	2,990
Other assets, non-current	9,785	10,246
Total assets	671,770	570,671
Current liabilities
Unpaid claims	238,602	135,737
Accounts payable and accrued expenses	35,408	37,184
Accrued salaries and benefits	28,327	20,951
Deferred revenue	0	3,099
Operating lease liabilities	1,623	1,665
Liabilities related to discontinued operations (Note 17)	50,622	60,099
Total current liabilities	356,389	261,115
Long-term operating lease liabilities	2,717	2,998
Other liabilities, non-current	20,190	20,164
Total liabilities	379,296	284,277
Commitments and Contingencies (Note 13)
Stockholders' equity
Additional paid-in capital	2,490,036	2,461,238
Accumulated other comprehensive loss	(2,560)	(2,370)
Accumulated deficit	(2,178,964)	(2,159,794)
Less: Treasury stock, at cost; 11,613,745 and 7,912,750 shares held at March 31, 2024 and December 31, 2023, respectively	(16,088)	(12,729)
Total stockholders' equity	292,474	286,394
Total liabilities and stockholders' equity	671,770	570,671
Common Class A
Stockholders' equity
Common stock, value	41	40
Common Class B
Stockholders' equity
Common stock, value	9	9
Related party
Current liabilities
Due to related parties, net	881	1,363
Other liabilities, current	881	1,363
Nonrelated party
Current liabilities
Due to related parties, net	926	1,017
Other liabilities, current	$ 926	$ 1,017