Derivative and Other Comprehensive Income (Details) - interest_rate_swap  | 
Jun. 30, 2015  | 
Dec. 25, 2016  | 
Dec. 27, 2015  | 
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| Derivative and Other Comprehensive Income | |||
| Number of derivative instruments held | 0 | 0 | |
| Number of derivative instruments that matured | 1 | 
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- Definition -- None. No documentation exists for this element. -- No definition available. 
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- Definition Derivative, Number Of Instruments Matured During The Period No definition available. 
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- Definition The number of derivative instruments of a particular group held by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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