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(8) Investments Japan Joint Venture (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 01, 2012 | Jan. 02, 2011 | Jan. 03, 2010
Schedule of Equity Method Investments [Line Items] |  |  |
Equity in Earnings for the Period, Net of Amortization of Purchase Price adjustments | $ 9,465 | $ 9,459 | $ 8,499
Japan JV [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity method investments | 77 | 0 |
Wendy's Restaurants, LLC [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity in Earnings for the Period, Net of Amortization of Purchase Price adjustments | 9,465 | 9,459 | 8,499
Wendy's Restaurants, LLC [Member] | Japan JV [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity method investment, ownership percentage | 49.00% |  |
Equity method investments | 77 |  |
Equity in Earnings for the Period, Net of Amortization of Purchase Price adjustments | $ (1,106) |  |

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