Goodwill and Intangible Assets, net (Tables)

6 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill

Changes in goodwill for the six months ended December 31, 2024 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	846.4		—		846.4
Currency translation adjustments	(16.1)		—		(16.1)
Balance at December 31, 2024	$	3,179.1	$	4.8	$	3,183.9

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	$	200.0	7
Customer/Partner relationships	$	210.0	8
Tradename	$	7.0	4

Components of intangible assets, net, are as follows:

	December 31,		June 30,
	2024		2024
Intangible assets:
Software and software licenses	$	4,098.6	$	3,803.7
Customer contracts and lists	1,420.0		1,181.6
Other intangibles	249.3		242.0
	5,767.9		5,227.3
Less accumulated amortization:
Software and software licenses	(2,743.5)		(2,642.6)
Customer contracts and lists	(1,042.9)		(1,007.6)
Other intangibles	(242.4)		(241.1)
	(4,028.8)		(3,891.3)
Intangible assets, net	$	1,739.1	$	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
Six months ending June 30, 2025	$	253.2
Twelve months ending June 30, 2026	$	362.3
Twelve months ending June 30, 2027	$	262.5
Twelve months ending June 30, 2028	$	220.6
Twelve months ending June 30, 2029	$	190.1
Twelve months ending June 30, 2030	$	148.8