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Dividend (Details)
$ in Thousands
2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 07, 2017
USD ($)
installment
May 29, 2016
USD ($)
May 31, 2015
USD ($)
May 25, 2014
USD ($)
Nov. 27, 2016
USD ($)
Nov. 29, 2015
USD ($)
Nov. 30, 2014
USD ($)
Nov. 26, 2017
USD ($)
Feb. 26, 2017
USD ($)
Subsequent Event [Line Items]                  
Cash dividend paid   $ (60,000) $ (50,000) $ (30,000) $ (60,000) $ (50,000) $ (30,003)    
Scenario, Forecast [Member]                  
Subsequent Event [Line Items]                  
Dividends payable               $ 35,000 $ 35,000
Subsequent Event [Member]                  
Subsequent Event [Line Items]                  
Dividend declared $ 70,000                
Number of installments | installment 2,000