XML 58 R40.htm IDEA: XBRL DOCUMENT v3.3.1.900
Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Table) (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2013
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2012
USD ($)
Investment [Line Items]          
Number of Stores   169 160    
Available-for-sale Securities, Gross Realized Gain (Loss) $ (677,000) $ (67,000) $ (677,000) $ 1,083,000  
Translation Adjustment Functional to Reporting Currency, Net of Tax   (29,487,000) (10,753,000)    
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax   (315,000) (1,561,000)    
Unrealized Gain (Loss) on Investments   (1,611,000) (438,000)    
Accumulated other comprehensive loss   (31,413,000) (12,752,000) $ (6,677,000) $ 1,443,000
Available-for-sale Securities, Gross Unrealized Gain   530,000 145,000    
Available-for-sale Securities, Gross Realized Gains   52,000 1,000    
Investment Maturity Date Range One Year Or Less [Member]          
Investment [Line Items]          
Financial Instruments, Owned, Corporate Debt, at Fair Value   11,240,000 11,363,000    
Certificates of Deposit, at Carrying Value   21,184,000 19,835,000    
Marketable Securities   32,424,000 31,198,000    
Investment Maturity Date Range One To Eight Years [Member]          
Investment [Line Items]          
Financial Instruments, Owned, Corporate Debt, at Fair Value   88,465,000 90,446,000    
Certificates of Deposit, at Carrying Value   0 0    
Marketable Securities   88,465,000 90,446,000    
Other Long-term Investments [Member]          
Investment [Line Items]          
Available-for-sale Securities, Gross Unrealized Gain   $ 1,133,000 589,000    
Available-for-sale Securities, Gross Realized Gains     $ 11,000