Goodwill and Intangible Assets, net (Tables)

9 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill

Changes in goodwill for the nine months ended March 31, 2024 are as follows:

	Employer Services		PEO Services		Total
Balance at June 30, 2023	$	2,334.6	$	4.8	$	2,339.4
Additions and other adjustments	24.5		—		24.5
Currency translation adjustments	(8.5)		—		(8.5)
Balance at March 31, 2024	$	2,350.6	$	4.8	$	2,355.4

Summary of Components of Finite-Lived Intangible Assets

Components of intangible assets, net, are as follows:

	March 31,		June 30,
	2024		2023
Intangible assets:
Software and software licenses	$	3,712.0	$	3,548.9
Customer contracts and lists	1,165.1		1,140.6
Other intangibles	242.0		241.9
	5,119.1		4,931.4
Less accumulated amortization:
Software and software licenses	(2,593.5)		(2,442.6)
Customer contracts and lists	(989.6)		(907.5)
Other intangibles	(240.7)		(237.7)
	(3,823.8)		(3,587.8)
Intangible assets, net	$	1,295.3	$	1,343.6

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated future amortization expenses of the Company's existing intangible assets are as follows:

	Amount
Three months ending June 30, 2024	$	109.7
Twelve months ending June 30, 2025	$	340.2
Twelve months ending June 30, 2026	$	214.2
Twelve months ending June 30, 2027	$	172.1
Twelve months ending June 30, 2028	$	133.1
Twelve months ending June 30, 2029	$	103.8