Equity-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefits related to equity-based compensation	$ 205	$ 148
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation expense	$ 3,441	$ 2,124

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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