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Earnings Per Share and Dividends - Dividends (Details) - Quarter One - USD ($)
$ / shares in Units, $ in Thousands
Nov. 30, 2018
Nov. 30, 2017
Dividends Payable [Line Items]    
Dividend per Share (in dollars per share) $ 0.08 $ 0.08
Total of Cash Dividends Declared $ 13,226 $ 14,588