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Restaurant Information by Ownership Type (Details) - Restaurant	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Number of Restaurants	38,984	37,971
Franchised
Segment Reporting Information [Line Items]
Number of Restaurants	36,347	35,278
Franchised | Conventional franchised
Segment Reporting Information [Line Items]
Number of Restaurants	21,838	21,662
Franchised | Developmental licensed
Segment Reporting Information [Line Items]
Number of Restaurants	7,678	7,362
Franchised | Affiliated
Segment Reporting Information [Line Items]
Number of Restaurants	6,831	6,254
Company-operated
Segment Reporting Information [Line Items]
Number of Restaurants	2,637	2,693

X

- Definition

Represents the number of restaurants.

+ References

No definition available.

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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X

- Details

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X

- Details

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X

- Details

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X

- Details

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