INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Accrued expenses and other liabilities	$ 33,620	$ 31,104
Stock-based compensation	9,436	2,584
Net operating loss and tax credit carryforwards	233,215	214,944
Property, equipment and software, net	8,984	14,022
Intangible assets, net	22,526	20,368
Right-of-use assets	647	628
Investments	5,756	5,802
Convertible senior notes	5,487	2,047
Unrealized foreign currency exchange losses	264	1,510
Capitalized research and development costs	14,278	16,259
Other	25	274
Total deferred tax assets	334,238	309,542
Less: Valuation allowances	(306,315)	(286,827)
Deferred tax assets, net of valuation allowance	27,923	22,715
Deferred tax liabilities:
Prepaid expenses and other assets	(14,052)	(11,201)
Operating lease obligation	(46)	(31)
Deferred revenue	(6,242)	(7,330)
Total deferred tax liabilities	(20,340)	(18,562)
Net deferred tax asset (liability)	$ 7,583	$ 4,153