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Stock-Based Compensation - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Share-based Payment Arrangement [Abstract]    
Stock-based compensation expense $ 10.4 $ 11.8
Related tax benefits 2.3 $ 2.6
Unrecognized compensation cost related to non-vested stock options 11.2  
Unrecognized compensation cost related to restricted stock unit awards $ 42.4  
Amortization period of unrecognized compensation cost for non-vested stock options 1 year 8 months 12 days  
Amortization period of unrecognized compensation cost for restricted stock awards 1 year 6 months