Acquisition (Schedule of Recognized Identified Assets Acquired, Goodwill, and Liabilities Assumed) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014	Mar. 29, 2014	Aug. 21, 2014 Wolfson [Member]
Cash and cash equivalents			$ 25,342
Inventory			28,658
Other current assets			15,633
Property, plant and equipment			29,093
Intangible assets			175,987
Pension assets			1,625
Total identifiable assets acquired			276,338
Deferred tax liability - current			(11,483)
Deferred revenue			(551)
Other accrued liabilities			(41,417)
Other long-term liabilities			(2,449)
Total identifiable liabilities assumed			(55,900)
Net identifiable assets acquired			220,438
Goodwill	265,410	16,367	249,043
Net assets acquired			$ 469,481