Financial Instruments and Fair Value Measurements (Schedules of Concentration of Risk) (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 26, 2015	Jun. 27, 2014	Jun. 26, 2015	Jun. 27, 2014	Sep. 26, 2014
Distributor Concentration Risk | Net Sales Attributable to Distributors | CuraScript, Inc
Concentration Risk [Line Items]
Concentration risk, percentage	28.00%	0.00%	28.00%	0.00%
Distributor Concentration Risk | Net Sales Attributable to Distributors | McKesson Corporation
Concentration Risk [Line Items]
Concentration risk, percentage	9.00%	24.00%	14.00%	18.00%
Distributor Concentration Risk | Net Sales Attributable to Distributors | Cardinal Health, Inc.
Concentration Risk [Line Items]
Concentration risk, percentage	12.00%	22.00%	13.00%	19.00%
Distributor Concentration Risk | Net Sales Attributable to Distributors | Amerisource Bergen Corporation
Concentration Risk [Line Items]
Concentration risk, percentage	10.00%	11.00%	8.00%	11.00%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | CuraScript, Inc
Concentration Risk [Line Items]
Concentration risk, percentage			15.00%		13.00%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | McKesson Corporation
Concentration Risk [Line Items]
Concentration risk, percentage			27.00%		24.00%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | Cardinal Health, Inc.
Concentration Risk [Line Items]
Concentration risk, percentage			15.00%		17.00%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | Amerisource Bergen Corporation
Concentration Risk [Line Items]
Concentration risk, percentage			10.00%		13.00%
Product Concentration Risk | Net Sales Attributable to Products | Acthar (Specialty Brands)
Concentration Risk [Line Items]
Concentration risk, percentage	28.00%	0.00%	28.00%	0.00%
Product Concentration Risk | Net Sales Attributable to Products | Optiray (CMDS)
Concentration Risk [Line Items]
Concentration risk, percentage	6.00%	12.00%	6.00%	13.00%