Acquisitions (Summary of Assets and Liabilities) (Details) - USD ($) $ in Millions	Jul. 31, 2019	Oct. 18, 2018	Jul. 31, 2018	Jul. 31, 2017
Assets:
Goodwill	$ 303.1		$ 238.4	$ 238.1
BOFA International LTD
Assets:
Net tangible assets		$ 12.2
Goodwill		72.9
Assets		131.7
Liabilities:
Deferred tax liabilities		8.2
Assumed debt		14.4
Liabilities		22.6
Total fair value		109.1
Company’s initial net consideration paid		96.0
Company’s initial non-controlling interest	$ 10.0	13.1
Customer relationships | BOFA International LTD
Assets:
Intangible assets		39.8
Trademarks and technology | BOFA International LTD
Assets:
Intangible assets		$ 6.8