Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite and Indefinite-Lived Intangible Assets

The gross and net carrying values of intangible assets as of the balance sheet dates, by major intangible asset class are as follows (in millions):

	September 30, 2023						September 30, 2022
	Gross Amount		Accumulated Amortization		Net Amount		Gross Amount		Accumulated Amortization		Net Amount
Intangible assets subject to amortization:
Trade/domain names	$	4.1	$	(2.4)	$	1.7	$	3.7	$	(1.6)	$	2.1
Software programs/platforms	28.5		(26.9)		1.6		28.3		(19.4)		8.9
Client base	38.3		(24.1)		14.2		29.5		(18.0)		11.5
Total intangible assets subject to amortization	70.9		(53.4)		17.5		61.5		(39.0)		22.5
Intangible assets not subject to amortization
Website domains	1.9		—		1.9		1.8		—		1.8
Business licenses	3.7		—		3.7		3.7		—		3.7
Total intangible assets not subject to amortization	5.6		—		5.6		5.5		—		5.5
Total intangible assets	$	76.5	$	(53.4)	$	23.1	$	67.0	$	(39.0)	$	28.0

Schedule of Expected Amortization Expense

As of September 30, 2023, estimated future amortization expense was as follows:

(in millions)
Fiscal 2024	$	6.7
Fiscal 2025	3.6
Fiscal 2026	2.8
Fiscal 2027	2.2
Fiscal 2028 and thereafter	2.2
	$	17.5