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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]          
Impairment of goodwill         $ 0
Amortization expense of intangible assets $ 7,854,000 $ 495,000 $ 22,358,000 $ 1,412,000  
Impairment of intangible assets         $ 0