XML 41 R30.htm IDEA: XBRL DOCUMENT v3.20.2
Revenue Recognition - Narrative (Details) - USD ($)
3 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Disaggregation Of Revenue [Line Items]    
Impairment charges $ 0  
Breakage    
Disaggregation Of Revenue [Line Items]    
Breakage income recognized   $ 100,000
Breakage | Maximum    
Disaggregation Of Revenue [Line Items]    
Breakage income recognized $ 100,000