Fair Value Measurements - Schedule of Estimated Fair Values of our Financial Assets and Financial Liabilities Measured At Amortized Cost (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financial Assets:
Cash and cash equivalents	$ 0	$ 21,242
Restricted cash and cash equivalents	1,689	1,674
Accounts receivable, net:	(629)	(371)
Total assets	274,160	463,444
Financial Liabilities:
Related party loans	8,233	188,576
Total liabilities	8,882	189,562
Level 1
Financial Assets:
Cash and cash equivalents	0	21,242
Restricted cash and cash equivalents	1,689	1,674
Accounts receivable, net:	0	0
Total assets	273,884	462,895
Financial Liabilities:
Related party loans	0	0
Total liabilities	0	0
Level 2
Financial Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net:	(629)	(371)
Total assets	(481)	(302)
Financial Liabilities:
Related party loans	8,233	188,576
Total liabilities	8,882	189,562
Level 3
Financial Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net:	0	0
Total assets	757	851
Financial Liabilities:
Related party loans	0	0
Total liabilities	0	0
Portion at Other than Fair Value Measurement
Financial Assets:
Cash and cash equivalents	215,623	252,215
Restricted cash and cash equivalents	102,058	113,605
Customer custodial funds	483,774	527,354
Accounts receivable, net:	33,104	31,258
Total assets	834,559	924,432
Financial Liabilities:
Custodial funds due to customers	483,656	527,307
Third party loans	75,349	75,151
Related party loans	244,341	215,355
Funding debt	140,457	154,374
Total liabilities	943,803	972,187
Portion at Other than Fair Value Measurement \| Level 1
Financial Assets:
Cash and cash equivalents	215,623	252,215
Restricted cash and cash equivalents	102,058	113,605
Customer custodial funds	483,774	527,354
Accounts receivable, net:	7,549	7,280
Total assets	809,004	900,454
Financial Liabilities:
Custodial funds due to customers	483,656	527,307
Third party loans	0	0
Related party loans	0	0
Funding debt	0	0
Total liabilities	483,656	527,307
Portion at Other than Fair Value Measurement \| Level 2
Financial Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Customer custodial funds	0	0
Accounts receivable, net:	0	0
Total assets	0	0
Financial Liabilities:
Custodial funds due to customers	0	0
Third party loans	75,349	75,151
Related party loans	244,341	215,355
Funding debt	140,457	154,374
Total liabilities	460,147	444,880
Portion at Other than Fair Value Measurement \| Level 3
Financial Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Customer custodial funds	0	0
Accounts receivable, net:	25,555	23,978
Total assets	25,555	23,978
Financial Liabilities:
Custodial funds due to customers	0	0
Third party loans	0	0
Related party loans	0	0
Funding debt	0	0
Total liabilities	$ 0	$ 0