Accounting Policies - Additional Information (Details) $ in Millions	9 Months Ended
Aug. 31, 2019 USD ($)
Accounting Policies [Abstract]
Capitalized Computer Software, Period Increase (Decrease)	$ 59.8

Amount of increase (decrease) in capitalized computer software costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

Name:	us-gaap_CapitalizedComputerSoftwarePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration