Dividend (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 25, 2018 USD ($)	Feb. 25, 2018 USD ($) installment	May 27, 2018 USD ($)	May 28, 2017 USD ($)
Dividends Payable [Line Items]
Dividend declared		$ 90,000
Number of dividend installments | installment		2
Dividend installments		$ 45,000
Dividend paid			$ 45,000	$ 35,000
Scenario, Forecast [Member]
Dividends Payable [Line Items]
Dividend paid	$ 45,000