Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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

Subsequent Event (Details) - USD ($) $ in Millions	Jan. 31, 2021	Mar. 04, 2019	Oct. 24, 2018	Feb. 17, 2016	Jan. 28, 2014	Jan. 29, 2013
Subsequent Event [Line Items]
Announcement of common stock repurchase program		$ 25.0	$ 25.0	$ 25.0	$ 25.0	$ 25.0
Subsequent Event
Subsequent Event [Line Items]
Announcement of common stock repurchase program	$ 25.0