Goodwill and Intangible Assets - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]        
Goodwill impairment charges   $ 0 $ 0 $ 0
Amortization of intangible assets   4,029,000 $ 3,111,000 $ 1,999,000
Weighted average remaining useful life     7 years  
Zenetex        
Acquired Finite-Lived Intangible Assets [Line Items]        
Intangible assets $ 33,200,000 33,200,000    
Weighted average remaining useful life 8 years      
HHB Systems        
Acquired Finite-Lived Intangible Assets [Line Items]        
Intangible assets $ 4,000,000.0 $ 4,000,000.0