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Business Combinations and Divestitures (Tables)
 3 Months Ended
Feb. 29, 2020
Business Combinations [Abstract]  
Disposal Groups, Including Discontinued Operations The transaction resulted in the divestiture of the following assets and liabilities (in millions):
Current assets
$
18.9

Property and equipment
$
4.5

Intangible assets
$
4.2

Goodwill
$
87.7

Current liabilities
$
(1.1
)
Deferred revenue
$
(24.8
)