Revenue Disclosures - Narrative (Details)	Sep. 30, 2021 state
Revenue from Contract with Customer [Abstract]
Franchises, number of states	35

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