Interim Financial Data by Segment - Schedule of Amortization of Acquired Intangibles and Purchased Intellectual Property by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Amortization of acquired intangibles and purchased intellectual property	$ 50.8	$ 55.9
Investor Communication Solutions | Operating Segments
Segment Reporting Information [Line Items]
Amortization of acquired intangibles and purchased intellectual property	11.4	15.5
Global Technology and Operations | Operating Segments
Segment Reporting Information [Line Items]
Amortization of acquired intangibles and purchased intellectual property	$ 39.4	$ 40.4