Intangible Assets & Goodwill - Summary of Definite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance $ 122,485   $ 93,800 $ 30,036 $ 30,036 $ 12,477
Adjustments to purchase price allocation     3,061      
Acquired license agreements         887  
Additions     72,268   65,870 15,656
Amortization expense (3,300) $ (500) (7,847) (1,700) (2,993) (1,753)
Net amount, ending balance 161,282   161,282   93,800 30,036
Previously Reported [Member]            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance 123,106   90,144 26,380 26,380  
Amortization expense         (2,992)  
Net amount, ending balance         90,144 26,380
Licenses            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance     84,517 24,538 24,538 11,568
Adjustments to purchase price allocation     3,061      
Acquired license agreements         887  
Additions     68,493   61,400 14,300
Amortization expense     (5,593)   (2,308) 1,330
Net amount, ending balance 150,478   150,478   84,517 24,538
Moxie Brand            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance     2,828      
Additions         2,960  
Amortization expense     (740)   (132)  
Net amount, ending balance 2,088   2,088   2,828  
Tradenames            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance     2,109 800 800 900
Additions     100   1,510  
Amortization expense     (741)   (201) 100
Net amount, ending balance 1,468   1,468   2,109 800
Customer Relationship            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance     683 883 883  
Additions           1,000
Amortization expense     (151)   (200) 117
Net amount, ending balance 532   532   683 883
Non-compete            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance     7 25 25  
Additions     86     35
Amortization expense     (93)   (18) 10
Net amount, ending balance         7 25
Trademarks            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance       134 134 9
Additions           321
Amortization expense         (134) 196
Net amount, ending balance           134
Internal Use Software            
Finite Lived Intangible Assets [Line Items]            
Net amount, beginning balance     3,656 $ 3,656 3,656  
Additions     3,589      
Amortization expense     (529)      
Net amount, ending balance $ 6,716   $ 6,716   $ 3,656 $ 3,656