XML 99 R88.htm IDEA: XBRL DOCUMENT v3.21.2
INCOME TAXES - Significant components of the Company's deferred taxes (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:    
Net operating loss carryforwards $ 265,799 $ 139,899
Tax credit carryforwards 40,454 18,076
Share-based compensation expense 2,554 4,191
Depreciation 499 210
Accrued compensation and vacation 2,498 699
Interest 489 409
Tenant improvement allowance 8,777 7,757
Accruals and reserves 39,502 3,577
Other 1  
Total deferred tax assets 360,573 174,818
Valuation allowance (360,573) (174,818)
Undistributed earnings from its foreign subsidiaries 0 0
Deferred tax liability $ 0 $ 0