Earnings Per Share and Stock Issuances - Additional Information (Details) - USD ($) $ in Millions		9 Months Ended
	Aug. 11, 2017	Aug. 31, 2017	Aug. 31, 2016
Class of Stock [Line Items]
Net proceeds from issuance of shares		$ 554.9	$ 0.0
Stock repurchase program, remaining authorized repurchase amount		191.3
Stock repurchase program, authorized amount		$ 600.0
RB Foods
Class of Stock [Line Items]
Shares issued in connection with RB Foods acquisition	6,353,591
Net proceeds from issuance of shares	$ 554.0
Over-Allotment Option | RB Foods
Class of Stock [Line Items]
Shares issued in connection with RB Foods acquisition	828,729