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Nature of Business - Additional Information (Detail)	Sep. 30, 2021 Location State
Accounting Policies [Abstract]
Number of branches | Location	372
Number of states | State	13

X

- References

No definition available.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
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X

- Definition

Represents the number of stores.

+ References

No definition available.

+ Details

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