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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Deferred tax assets: |  |
Share-based compensation | $ 1.7 | $ 3.1
Deferred compensation | 4.7 | 4.1
Net operating loss carryforwards | 17.7 | 16.2
Intangible assets | 6.5 | 9.9
Bad debt reserve | 7.3 | 4.4
Tax credit carryforwards | 0.0 | 0.2
Foreign tax credit carryforwards | 2.0 | 2.4
Other compensation | 7.0 | 5.8
Property and equipment | 6.3 | 7.3
Pension | 1.2 | 0.0
Other | 3.1 | 1.9
Total gross deferred tax assets | 57.5 | 55.3
Less valuation allowance | (15.0) | (12.4)
Deferred tax assets | 42.5 | 42.9
Deferred income tax liabilities: |  |
Unrealized gain on securities | 2.8 | 2.4
Prepaid expenses | 4.2 | 3.4
Pension liability | 0.0 | 0.2
Other deferred liabilities | 0.4 | 0.0
Deferred income tax liabilities | 7.4 | 6.0
Deferred income taxes, net | $ 35.1 | $ 36.9

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