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Fair Value Measurements (Details) - USD ($)
$ in Thousands
3 Months Ended
Oct. 05, 2015
Dec. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Payment for contingent consideration   $ 5,772   $ 259      
Fair Value, Inputs, Level 3              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Contingent consideration fair value   10,000   $ 14,766   $ 4,228 $ 5,407
Contingent Consideration | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Contingent consideration fair value   0       0  
Contingent Consideration | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Contingent consideration fair value   0       0  
Contingent Consideration | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Contingent consideration fair value   10,000       4,228  
Bluenica Corporation              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Earn-out payment installment period 4 years            
Bluenica Corporation | Contingent Consideration              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Payment for contingent consideration     $ 2,900        
Accelerated | Contingent Consideration              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Payment for contingent consideration     2,400   $ 3,500    
Opengear | Contingent Consideration              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Payment for contingent consideration     $ 900        
Estimate of Fair Value Measurement | Contingent Consideration | Fair Value, Measurements, Recurring              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Contingent consideration fair value   10,000       $ 4,228  
Estimate of Fair Value Measurement | Opengear | Contingent Consideration | Fair Value, Measurements, Recurring              
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]              
Contingent consideration fair value   $ 10,000