Intangible Assets

3 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

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):

	December 31, 2020						September 30, 2020
	Gross Amount		Accumulated Amortization		Net Amount		Gross Amount		Accumulated Amortization		Net Amount
Intangible assets subject to amortization
Trade/domain names	$	3.7	$	(0.3)	$	3.4	$	3.7	$	(0.2)	$	3.5
Software programs/platforms	29.0		(7.1)		21.9		29.0		(4.9)		24.1
Customer base	38.2		(17.7)		20.5		38.2		(16.3)		21.9
Total intangible assets subject to amortization	70.9		(25.1)		45.8		70.9		(21.4)		49.5
Intangible assets not subject to amortization
Website domains	2.1		—		2.1		2.1		—		2.1
Business licenses	3.7		—		3.7		3.2		—		3.2
Total intangible assets not subject to amortization	5.8		—		5.8		5.3		—		5.3
Total intangible assets	$	76.7	$	(25.1)	$	51.6	$	76.2	$	(21.4)	$	54.8

Amortization expense related to intangible assets was $3.8 million and $0.7 million for the three months ended December 31, 2020 and 2019, respectively.

As of December 31, 2020, the estimated future amortization expense was as follows:

(in millions)
Fiscal 2021 (remaining nine months)	$	11.3
Fiscal 2022	13.9
Fiscal 2023	12.2
Fiscal 2024	4.7
Fiscal 2025 and thereafter	3.7
Total intangible assets subject to amortization	$	45.8