Common Stock and Earnings per Share Share Repurchase Programs (Details) $ / shares in Units, $ in Thousands	6 Months Ended	11 Months Ended
	May 31, 2016 USD ($) $ / shares shares	May 31, 2016 USD ($) $ / shares shares
Equity, Class of Treasury Stock [Line Items]
Repurchases of common stock, value	$ 75,005
Stock repurchase program June 2015 [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 500,000	$ 500,000
Repurchases of common stock, shares | shares	648,854	1,879,641
Repurchases of common stock, value	$ 75,000	$ 216,700
Treasury stock repurchase, price per share | $ / shares	$ 115.58	$ 115.29