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Earnings Per Share - Reconciliation of Shares in the Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Earnings Per Share, Basic [Abstract]              
Net income (loss) $ 462 $ 3,224 $ (3,816) $ 3,912 $ (7,158) $ (2,512) $ (13,692)
Net income (loss) available to common stockholders 462 3,224 (3,816) 3,912      
Net income (loss) available to common stockholders $ 462 $ 3,224 $ (3,816) $ 3,912      
Earnings Per Share, Diluted [Abstract]              
Weighted-average common shares outstanding used in computing basic net earnings (loss) per share (in shares) 158,124 158,124 158,124 158,124      
Basic earnings (loss) per share (in dollars per share) $ 0.00 $ 0.02 $ (0.02) $ 0.02      
Weighted-average shares used in computing diluted net earnings (loss) per share (in shares) 158,124 158,124 158,124 158,124      
Diluted earnings (loss) per share (in dollars per share) $ 0.00 $ 0.02 $ (0.02) $ 0.02