Fair Value of Financial Instruments - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 30, 2021
Cash and cash equivalents:
Money market funds	$ 0.0	$ 0.0
Other current assets:
Securities	0.6	0.7
Other non-current assets:
Securities	118.0	120.6
Derivative asset	101.4
Liabilities:
Contingent consideration obligations	12.9	23.2
Level 1
Cash and cash equivalents:
Money market funds	0.0	0.0
Other current assets:
Securities	0.6	0.7
Other non-current assets:
Securities	118.0	120.6
Derivative asset	0.0
Liabilities:
Contingent consideration obligations	0.0	0.0
Level 2
Cash and cash equivalents:
Money market funds	0.0	0.0
Other current assets:
Securities	0.0	0.0
Other non-current assets:
Securities	0.0	0.0
Derivative asset	101.4
Liabilities:
Contingent consideration obligations	0.0	0.0
Level 3
Cash and cash equivalents:
Money market funds	0.0	0.0
Other current assets:
Securities	0.0	0.0
Other non-current assets:
Securities	0.0	0.0
Derivative asset	0.0
Liabilities:
Contingent consideration obligations	12.9	23.2
Fair Value, Measurements, Recurring
Other non-current assets:
Total assets	220.1	121.2
Liabilities:
Total liabilities	12.9	23.2
Fair Value, Measurements, Recurring | Level 1
Other non-current assets:
Total assets	118.7	121.2
Liabilities:
Total liabilities	0.0	0.0
Fair Value, Measurements, Recurring | Level 2
Other non-current assets:
Total assets	101.4	0.0
Liabilities:
Total liabilities	0.0	0.0
Fair Value, Measurements, Recurring | Level 3
Other non-current assets:
Total assets	0.0	0.0
Liabilities:
Total liabilities	$ 12.9	$ 23.2