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Acquisitions (Details)
 1 Months Ended 9 Months Ended
Jan. 22, 2018
USD ($)
Oct. 20, 2017
USD ($)
Apr. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
 [1]
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]            
Payment for contingent consideration       $ (1,188,000) $ (333,000)  
Accelerated            
Business Acquisition [Line Items]            
Cash paid at closing $ 16,400,000          
Cash acquired $ 200,000          
Earn-out payment installments 2          
TempAlert            
Business Acquisition [Line Items]            
Cash paid at closing   $ 40,700,000        
Cash acquired   $ 600,000        
Earn-out payments | Accelerated            
Business Acquisition [Line Items]            
Earn-out payment maximum $ 6,500,000          
Payment for contingent consideration     $ 3,500,000      
Remaining contingent consideration       2,500,000    
Earn-out payments | TempAlert            
Business Acquisition [Line Items]            
Remaining contingent consideration       $ 0    
Forecast | Earn-out payments | TempAlert            
Business Acquisition [Line Items]            
Earn-out payment maximum           $ 45,000,000
[1] Prior period information has been restated for the adoption of ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which we adopted on October 1, 2018.