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Credit Facility (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 3 Months Ended 3 Months Ended
Mar. 21, 2012
Mar. 28, 2014
Revolving line of credit facility [Member]
Feb. 21, 2012
Revolving line of credit facility [Member]
Mar. 28, 2014
Term Loan [Member]
Feb. 21, 2012
Term Loan [Member]
Mar. 28, 2014
Revolving Line Of Credit Facility And Term Loan [Member]
Aug. 27, 2013
Revolving Line Of Credit Facility And Term Loan [Member]
Mar. 28, 2014
LIBOR Rate [Member]
Mar. 28, 2014
Base Rate [Member]
Line of Credit Facility [Line Items]                  
Borrowing capacity under credit facility     $ 20.0   $ 30.0        
Credit facility amount outstanding   4.5   24.0          
Availability remaining   15.5   1.0          
Term of debt       5 years   5 years      
Stock repurchase cost of tender offer net of fees and expenses related to tender offer 55.0                
Additional borrowing capacity             $ 17.0    
Maturity date       Aug. 27, 2018   Aug. 27, 2018      
Margin percentage base rate               1.50% 0.75%