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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 25, 2017 | Mar. 26, 2016
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |  |
Rent expense | $ 11.5 | $ 8.2 | $ 5.2
Sublease rental income | 0.3 | $ 0.4 | $ 0.3
Foundry Commitments |  |  |
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |  |
Non-cancelable purchase commitments | 80.2 |  |
Assembly Purchase Order Commitments |  |  |
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |  |
Non-cancelable purchase commitments | 3.2 |  |
Outside Test Services Commitments |  |  |
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |  |
Non-cancelable purchase commitments | 11.5 |  |
Long-term Other Purchase Obligation |  |  |
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |  |
Non-cancelable purchase commitments | $ 59.7 |  |

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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 + Details
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- Details
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