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Long-Term Debt Senior Credit Facility (Details) - Jun. 28, 2015 - USD ($)
$ in Thousands
Total
Debt Instrument [Line Items]  
Line of Credit Facility, Current Borrowing Capacity $ 30,000
Line of Credit Facility, Potential Incremental Increases 25,000
Senior Credit Facility - Revolving credit borrowings 0
Letters of Credit Outstanding, Amount 12,000
Line of Credit Facility, Remaining Borrowing Capacity 18,000
Letter of Credit [Member]  
Debt Instrument [Line Items]  
Line of Credit Facility, Current Borrowing Capacity $ 20,000
Alternative Base Rate [Member]  
Debt Instrument [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum 2.00%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximim 2.75%
London Interbank Offered Rate (LIBOR) [Member]  
Debt Instrument [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum 3.00%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximim 3.75%
Line of Credit Facility, Libor Rate, Interest Rate Margin 3.50%