Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Narrative (Details)

v3.20.2
Earnings Per Share - Narrative (Details) - shares
3 Months Ended 9 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Antidilutive securities excluded from computation of earnings per share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount 2,800,000 1,100,000 2,900,000 900,000
Performance-based stock awards (maximum that can be earned)        
Antidilutive securities excluded from computation of earnings per share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount     400,000