Business Combinations (Recognized Identifiable Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Oct. 31, 2014	Jan. 01, 2016	Sep. 25, 2015
Business Acquisition [Line Items]
Goodwill		$ 308,374	$ 307,708
Doremi Labs [Member]
Business Acquisition [Line Items]
Current assets	$ 17,231
Inventories	16,372
Intangible assets	45,600
Goodwill	39,672
Current liabilities	(11,653)
Non-current liabilities	(8,820)
Cash payment to sellers	98,402
Contingent consideration liability	740
Cash consideration paid to sellers	$ 99,142