Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Narrative (Details)

v3.19.2
Revenue Recognition - Narrative (Details)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Revenue from Contract with Customer [Abstract]    
Deferred revenue, revenue recognized $ 23.2 $ 35.0
Cumulative catch-up adjustment to revenue from change in estimates   (10.3)
Deferred contract costs 13.0 13.0
Amortization of deferred contract costs $ 1.9 $ 4.7