Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 26, 2016	Mar. 28, 2015	Mar. 29, 2014
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Rent expense	$ 5,200	$ 4,000	$ 2,800
Sublease rental income	300	100	$ 100
Total property, plant and equipment	252,173	216,705
Accumulated depreciation	89,517	$ 72,359
Capital Leases, Future Minimum Payments, Next Rolling Twelve Months	234
Capital Leases, Future Minimum Payments Due in Two Years	234
Capital Leases, Future Minimum Payments Due in Three Years	234
Assets Held under Capital Leases [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Total property, plant and equipment	1,000
Accumulated depreciation	300
Foundry Commitments [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Non-cancelable purchase commitments	98,200
Assembly Purchase Order Commitments [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Non-cancelable purchase commitments	4,800
Outside Test Services Commitments [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Non-cancelable purchase commitments	9,700
Long-term Other Purchase Obligation [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Non-cancelable purchase commitments	$ 29,800