Restructuring and Related Charges (Schedule of Restructuring and Related Charges by Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2016	Dec. 25, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	$ 5.3	$ 4.2
Less: accelerated depreciation	(1.5)	(0.1)
Restructuring charges, net	3.8	4.1
Specialty Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	2.6	1.6
Specialty Generics
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	0.8	1.1
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	$ 1.9	$ 1.5