v2.4.0.6

Subsequent Event (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Nov. 30, 2018
Subsequent Events [Abstract]
Subsequent event which include future cash commitments	$ 8.5

X

- Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Subsequent Event Which Include future Cash Commitments.

+ References

No definition available.

+ Details

Name:	wday_SubsequentEventWhichIncludeFutureCashCommitments
Namespace Prefix:	wday_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration