Debt (Details) (USD $) In Thousands, unless otherwise specified	Jun. 25, 2013		Dec. 25, 2012
Details of Debt
Carrying value	$ 558,125		$ 558,125
Less current portion	625		0
Long-term debt	557,500		558,125
Term Loan [Member]
Details of Debt
Carrying value	368,125		368,125
Senior Notes [Member]
Details of Debt
Carrying value	190,000		190,000
Revolving Facility ($100 million) [Member]
Details of Debt
Carrying value		[1]		[1]

[1] The Company had $81.7 million and $81.1 million of borrowing capacity available under its Revolving Facility, net of $18.3 million and $18.9 million of outstanding letters of credit at June 25, 2013 and December 25, 2012, respectively.