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Debt (Narrative) (United States Credit Facilities) (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 28, 2013
Dec. 31, 2014
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2015
Jun. 30, 2015
Dec. 02, 2014
USD ($)
Line of Credit Facility [Line Items]            
Credit facilities amount outstanding   $ 6,860 $ 9,874      
Term Credit Facility (U.S. Facilities) [Member]            
Line of Credit Facility [Line Items]            
Credit facility, borrowing capacity           $ 5,000
Percentage of subsidiary shares used to secure borrowings in facility 65.00%          
United States Credit Facilities [Member]            
Line of Credit Facility [Line Items]            
Minimum fixed charge coverage ratio   1.10        
Credit facilities amount outstanding   $ 11,000 $ 14,100      
United States Credit Facilities [Member] | Scenario, Plan [Member]            
Line of Credit Facility [Line Items]            
Minimum fixed charge coverage ratio     1.25      
United States Credit Facilities (Facility A) [Member]            
Line of Credit Facility [Line Items]            
Credit facilities amount outstanding   6,000 $ 9,400      
United States Credit Facilities (Facility A) [Member] | Prime Rate [Member]            
Line of Credit Facility [Line Items]            
Interest rate spread     1.00%      
United States Credit Facilities (Facility A) [Member] | LIBOR Eurodollar Loan [Member]            
Line of Credit Facility [Line Items]            
Interest rate spread     2.25%      
United States Credit Facilities (Facility B) [Member]            
Line of Credit Facility [Line Items]            
Credit facilities amount outstanding   $ 5,000 $ 4,700      
United States Credit Facilities (Facility B) [Member] | Prime Rate [Member]            
Line of Credit Facility [Line Items]            
Interest rate spread     1.25%      
United States Credit Facilities (Facility B) [Member] | LIBOR Eurodollar Loan [Member]            
Line of Credit Facility [Line Items]            
Interest rate spread     2.50%      
Maximum [Member] | United States Credit Facilities [Member] | Scenario, Plan [Member]            
Line of Credit Facility [Line Items]            
EBITDA benchmark ratio   3.15 2.75 3.65 3.25