Interim Financial Data by Segment - Schedule of Amortization of Acquired Intangibles and Purchased Intellectual Property by Segment (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Segment Reporting Information [Line Items] | ||||
| Amortization of acquired intangibles and purchased intellectual property | $ 49.9 | $ 53.7 | $ 100.7 | $ 109.5 |
| Investor Communication Solutions | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Amortization of acquired intangibles and purchased intellectual property | 11.4 | 14.9 | 22.8 | 30.4 |
| Global Technology and Operations | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Amortization of acquired intangibles and purchased intellectual property | $ 38.5 | $ 38.8 | $ 77.9 | $ 79.1 |