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Acquisition (Details 1) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Jan. 04, 2019
Sep. 30, 2020
Dec. 31, 2019
Trade Names      
Business Acquisition [Line Items]      
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life   11 years 11 years
Customer Lists      
Business Acquisition [Line Items]      
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life   15 years 15 years
Gaomei      
Business Acquisition [Line Items]      
Business Acquisition, Name of Acquired Entity Hefei Gaomei Cleaning Machines Co., Ltd. and Anhui Rongen Environmental Protection Technology Co., Ltd. (collectively "Gaomei")    
Business Acquisition, Goodwill, Expected Tax Deductible Amount $ 0.0    
Business Combination, Working Capital Adjustment     $ (0.2)
Recorded Unconditional Purchase Obligation 11.3    
Purchase Obligation, Due in Second Year     11.3
Gaomei | Minimum      
Business Acquisition [Line Items]      
Business Combination, Contingent Consideration, Liability 1.4    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life   10 years  
Gaomei | Maximum      
Business Acquisition [Line Items]      
Business Combination, Contingent Consideration, Liability 3.1    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life   15 years  
Fair Value | Contingent Consideration      
Business Acquisition [Line Items]      
Business Combination, Contingent Consideration, Liability $ 4.7 $ 1.9 $ 2.1