Income Taxes Income Taxes Text (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2018	Apr. 01, 2017	Apr. 02, 2016
Income Tax Contingency [Line Items]
U.S. federal and state	$ (42,329)	$ 0	$ 0
Deferred Tax Assets, Valuation Allowance, Noncurrent	18,499	$ 103,315
Change in Valuation Allowance due to utilization of net operating losses	24,900
Change in Valuation Allowance due to changes in Tax Rates	$ 17,600

Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31917-109318

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31928-109318

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant