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Restaurant Information by Ownership Type (Detail)
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Dec. 31, 2011
Location
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Dec. 31, 2010
Location
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Dec. 31, 2009
Location
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| Segment Reporting Information [Line Items] | |||
| Number of Restaurants | 33,510 | 32,737 | 32,478 |
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Franchised
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| Segment Reporting Information [Line Items] | |||
| Number of Restaurants | 27,075 | 26,338 | 26,216 |
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Franchised | Conventional franchised
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| Segment Reporting Information [Line Items] | |||
| Number of Restaurants | 19,527 | 19,279 | 19,020 |
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Franchised | Developmental licensed
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| Segment Reporting Information [Line Items] | |||
| Number of Restaurants | 3,929 | 3,485 | 3,160 |
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Franchised | Affiliated
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| Segment Reporting Information [Line Items] | |||
| Number of Restaurants | 3,619 | 3,574 | 4,036 |
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Company-operated
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| Segment Reporting Information [Line Items] | |||
| Number of Restaurants | 6,435 | 6,399 | 6,262 |