XML 183 R77.htm IDEA: XBRL DOCUMENT v3.21.1
INCOME TAXES - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Tax Examination [Line Items]    
Income tax expense (benefit) from continuing operations $ 25,000 $ 2,000
Effective tax rate (0.45%) (0.29%)
Net operating losses $ 146,000,000  
Specified time period for ownership change 3 years  
Accruals related to uncertainties tax positions $ 0 $ 0
Minimum    
Income Tax Examination [Line Items]    
Percentage of ownership change 50.00%  
Percentage of change in ownership of shareholders 1.00%  
Maximum    
Income Tax Examination [Line Items]    
Percentage of change in ownership of shareholders 5.00%