Goodwill and Intangible Assets, Net - Schedule of Changes in Goodwill (Detail) - USD ($) $ in Millions |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2013 |
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| Goodwill [Roll Forward] | ||||||
| Goodwill, gross | $ 856.1 | $ 778.4 | ||||
| Additions | $ 124.0 | 70.1 | ||||
| Foreign currency translation and other | (9.6) | [1] | 7.6 | |||
| Accumulated impairment losses | 0.0 | 0.0 | ||||
| Goodwill | 970.5 | 856.1 | ||||
| Investor Communication Solutions [Member] | ||||||
| Goodwill [Roll Forward] | ||||||
| Goodwill, gross | 583.1 | 513.0 | ||||
| Additions | 98.5 | 70.1 | ||||
| Foreign currency translation and other | (0.2) | [1] | 0.0 | |||
| Accumulated impairment losses | 0.0 | 0.0 | ||||
| Goodwill | 681.4 | 583.1 | ||||
| Goodwill transferred | 10.6 | |||||
| Global Technology And Operations [Member] | ||||||
| Goodwill [Roll Forward] | ||||||
| Goodwill, gross | 273.0 | $ 265.4 | ||||
| Additions | 25.5 | 0.0 | ||||
| Foreign currency translation and other | (9.4) | [1] | 7.6 | |||
| Accumulated impairment losses | 0.0 | 0.0 | ||||
| Goodwill | 289.1 | $ 273.0 | ||||
| Goodwill transferred | $ (10.6) | |||||
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