Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Narrative (Details)

v3.20.4
Revenue Recognition - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]    
Deferred revenue, revenue recognized $ 14,000 $ 18,000
Cumulative catch-up adjustment to revenue from change in estimates $ 10,200 (1,400)
Cumulative catch-up adjustment to diluted earnings per share from change in estimates (in dollars per share) $ 0.12  
Deferred contract cost capitalization $ 2,491 1,300
Deferred contract cost amortization $ 2,287 $ 2,200