Background (Narrative) (Details)	Sep. 30, 2020 ft² store state
Background [Abstract]
Number of stores \| store	142
Number of states in which entity operates \| state	31
Area of stores \| ft²	20,000

The number of states the entity operates in as of the balance sheet date.

No definition available.

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant