Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 148,234	$ 143,206
Restricted cash	251	175
Prepaid income tax	0	575
Prepaid expenses and other current assets	45,116	47,695
Total current assets	193,601	191,651
NON-CURRENT ASSETS:
Investment	469	469
Property and equipment, net	482	617
Operating lease right-of-use assets	4,784	2,006
Deferred tax assets	3,054	2,224
Long-term prepaid expenses and other assets	7,444	327
Total assets	209,834	197,294
CURRENT LIABILITIES:
Accounts payable	1,982	4,761
Accrued expenses and other liabilities	8,617	9,325
Operating lease liabilities - current	2,176	1,510
Total current liabilities	12,775	15,596
NON-CURRENT LIABILITIES
Long-term debt	28,124	0
Operating lease liabilities - non-current	2,539	418
Total liabilities	43,438	16,014
Commitments and contingencies (Note 11)
SHAREHOLDERS' EQUITY:
Additional paid-in capital	496,342	458,825
Accumulated other comprehensive loss	(16,728)	(16,867)
Accumulated deficit	(313,689)	(261,146)
Total shareholders' equity	166,396	181,280
Total liabilities and shareholders' equity	209,834	197,294
Ordinary shares
SHAREHOLDERS' EQUITY:
Ordinary and deferred shares	471	440
Deferred shares
SHAREHOLDERS' EQUITY:
Ordinary and deferred shares	$ 0	$ 28