XML 64 R40.htm IDEA: XBRL DOCUMENT v3.19.2
Goodwill and Intangible Assets - Estimated Aggregate Amortization Expense (Details)
$ in Millions
Jul. 31, 2019
USD ($)
Estimated aggregate future amortization expense  
Expense remainder of fiscal year $ 48.6
2021 55.4
2022 46.4
2023 38.7
2024 31.5
Thereafter $ 137.3