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Goodwill and Intangibles - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Goodwill [Line Items]          
Goodwill $ 6,129,000   $ 6,129,000   $ 6,129,000
Impairment of goodwill 0 $ 0 0 $ 0  
Amortization of intangibles 87,000 109,000 295,000 526,000  
Impairment of intangible assets (excluding goodwill) 0 $ 0 0 $ 0  
Trade name          
Goodwill [Line Items]          
Amount of excess of fair value over carrying amount of indefinite-lived intangible assets $ 1,000,000   $ 1,000,000    
Percentage of fair value in excess of carrying amount of indefinite-lived intangibles assets 0.10   0.10    
OD Reporting Unit          
Goodwill [Line Items]          
Amount of fair value in excess of carrying amount of reporting unit $ 33,300,000   $ 33,300,000    
Percentage of fair value in excess of carrying amount of reporting unit 169.00%   169.00%    
Impairment of goodwill $ 0   $ 0