CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 190,562	$ 103,791
Short-term investments	69,478	41,457
Investment securities, available-for-sale (Amortized cost: 2023: $159,062; 2022: $193,300)	156,542	189,498
Investment securities, held-to-maturity (Fair value: 2023: $15; 2022: $15)	15	15
Accrued retrospective premiums	70,185	20,387
Other receivables	24,291	23,596
Healthcare receivables	56,943	70,607
Non-Insurance performance year receivable	552,620	0
Non-Insurance receivable	53,625	52,955
Surety bonds and deposits	80,329	100,502
Prepaid expenses	16,898	18,146
Other assets, current	2,771	4,043
Total current assets	1,274,259	624,997
Investment securities, available-for-sale (Amortized cost: 2023: $139,643; 2022: $142,940)	135,132	137,368
Investment securities, held-to-maturity (Fair value: 2023: $651; 2022: $636)	741	742
Property and equipment, net	4,547	5,753
Operating lease right-of-use assets	4,109	4,025
Goodwill and other intangible assets	20,000	20,000
Other assets, non-current	14,801	15,735
Total assets	1,453,589	808,620
Current liabilities
Unpaid claims	141,258	141,947
Due to related parties, net	1,331	1,566
Non-Insurance performance year obligation, current	613,057	73,844
Non-Insurance payable	160,942	148,191
Accounts payable and accrued expenses	47,452	32,445
Accrued salaries and benefits	30,306	23,962
Deferred revenue	107,563	0
Operating lease liabilities	1,862	1,827
Premium deficiency reserve	5,430	7,239
Other liabilities, current	1,173	486
Total current liabilities	1,110,374	431,507
Long-term operating lease liabilities	3,908	4,033
Other liabilities, non-current	16,200	16,193
Total liabilities	1,130,482	451,733
Commitments and Contingencies (Note 14)
Stockholders' equity
Additional paid-in capital	2,358,622	2,319,157
Accumulated other comprehensive loss	(7,031)	(9,374)
Accumulated deficit	(2,019,039)	(1,946,433)
Less: Treasury stock, at cost; 5,006,473 and 2,072,752 shares held at March 31, 2023 and December 31, 2022, respectively	(9,491)	(6,509)
Total stockholders' equity	323,107	356,887
Total liabilities and stockholders' equity	1,453,589	808,620
Common Class A
Stockholders' equity
Common stock, value	37	37
Common Class B
Stockholders' equity
Common stock, value	$ 9	$ 9