Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Provision for income taxes	$ 148.7	$ 117.0	$ 125.2
Effective income tax rate	21.40%	20.20%	20.60%
Excess tax benefit related to stock-based compensation awards	$ 16.9	$ 15.6	$ 19.3
Accumulated earnings attributable to foreign subsidiaries	727.8
Accumulated earnings attributable to foreign subsidiaries, permanently reinvested outside of the United States	436.8
Accumulated earnings attributable to foreign subsidiaries, not permanently reinvested outside of the United States	291.0
Unremitted earnings	16.3	9.5
Deferred tax asset valuation allowances	10.5	6.7
Reserve for unrecognized tad positions	47.5	33.8	33.4
Gross decrease for prior period tax positions	2.9	9.5	2.6
Accrued interest and penalties related to uncertain tax positions	0.1	0.1	(0.1)
Total liability recognized	3.6	$ 3.6	$ 3.6
Foreign
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unremitted earnings	16.3
Net operating loss carryforwards	63.0
Foreign net operating loss carryforwards subject to expiration	7.9
Foreign net operating loss carryforwards not subject to expiration	55.1
Domestic
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Net operating loss carryforwards	43.5
Foreign net operating loss carryforwards subject to expiration	24.4
Foreign net operating loss carryforwards not subject to expiration	$ 19.1