Goodwill and Intangible Assets, net (Tables)

9 Months Ended

Mar. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill

Changes in goodwill for the nine months ended March 31, 2025 are as follows:

	Employer Services		PEO Services		Total
Balance at June 30, 2024	$	2,348.8	$	4.8	$	2,353.6
Additions and other adjustments	947.3		—		947.3
Currency translation adjustments	(0.7)		—		(0.7)
Balance at March 31, 2025	$	3,295.4	$	4.8	$	3,300.2

Schedule of Components of Finite-Lived Intangible Assets

The estimated fair value of intangible assets and related useful lives as included in the estimated purchase price allocation include:

	Estimated Fair Value		Estimated Useful Life (in years)
Technology	$	115.0	7
Customer/Partner relationships	$	170.0	8
Tradename	$	7.0	4

Components of intangible assets, net, are as follows:

	March 31,		June 30,
	2025		2024
Intangible assets:
Software and software licenses	$	4,042.7	$	3,803.7
Customer contracts and lists	1,394.8		1,181.6
Other intangibles	249.5		242.0
	5,687.0		5,227.3
Less accumulated amortization:
Software and software licenses	(2,762.8)		(2,642.6)
Customer contracts and lists	(1,076.7)		(1,007.6)
Other intangibles	(243.2)		(241.1)
	(4,082.7)		(3,891.3)
Intangible assets, net	$	1,604.3	$	1,336.0

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, 2025	$	124.7
Twelve months ending June 30, 2026	$	396.6
Twelve months ending June 30, 2027	$	255.4
Twelve months ending June 30, 2028	$	213.6
Twelve months ending June 30, 2029	$	183.0
Twelve months ending June 30, 2030	$	142.1