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Summary of Business and Significant Accounting Policies - Costs Capitalized to Obtain Revenue Contracts (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Jun. 30, 2020
Capitalized costs          
Contract cost capitalized during period $ 677 $ 459 $ 1,100 $ 1,000  
Amortization of contract cost 309 $ 210 872 $ 607  
Costs capitalized to obtain revenue contracts $ 3,800   $ 3,800   $ 3,400
New revenue contracts          
Capitalized costs          
Amortization period 5 years   5 years