Annual report pursuant to Section 13 and 15(d)

Income Tax - Additional Information (Details)

v3.20.4
Income Tax - Additional Information (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]                      
Income tax benefit (expense) $ 5,640,000 $ (2,345,000) $ 1,407,000 $ (1,923,000) $ (9,396,000) $ (132,000) $ (839,000) $ 2,270,000 $ 2,779,000 $ (8,097,000) $ (2,144,000)
Deferred tax liability remeasurement adjustment                 1,000,000    
Net deferred tax liabilities 8,000,000       14,000,000       8,000,000 14,000,000  
Net operating loss carryforwards 264,000,000               264,000,000    
Deferred tax assets, operating loss carryforwards, subject to expiration 15,000,000               15,000,000    
Operating loss carryforwards, not subject to expiration         190,000,000         190,000,000  
Uncertain tax positions 0       0       0 0  
Accrued interest and penalties 0       0       0 0  
Interest and penalties recognized during the period                 0 0  
Tax Year 2035                      
Operating Loss Carryforwards [Line Items]                      
Net operating loss carryforwards 74,000,000               74,000,000    
TRS                      
Operating Loss Carryforwards [Line Items]                      
Income tax benefit (expense)                 3,000,000 (8,000,000) $ (2,000,000)
Net deferred tax liabilities $ 8,000,000       $ 14,000,000       $ 8,000,000 $ 14,000,000