INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Accrued expenses and other liabilities	$ 37,397	$ 45,532
Operating lease obligation	5,602	10,890
Stock-based compensation	3,886	4,014
Net operating loss and tax credit carryforwards	135,743	140,787
Intangible assets, net	19,139	20,357
Investments	20,360	20,581
Convertible senior notes	4,638	5,929
Unrealized foreign currency exchange losses	0	1,078
Capitalized research and development costs	9,994	0
Other	312	244
Total deferred tax assets	237,071	249,412
Less: Valuation allowances	(204,462)	(145,105)
Deferred tax assets, net of valuation allowance	32,609	104,307
Deferred tax liabilities:
Prepaid expenses and other assets	(11,983)	(14,605)
Property, equipment and software, net	(1,470)	(9,511)
Right-of-use asset	(679)	(7,293)
Deferred revenue	(8,027)	(12,755)
Total deferred tax liabilities	(22,159)	(44,164)
Net deferred tax asset (liability)	$ 10,450	$ 60,143