Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(31))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

Description of Business and Basis of Presentation - Adoption of New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 29, 2019	Dec. 28, 2019	Mar. 30, 2019	Dec. 29, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity	$ (786,160)		$ (776,437)	$ (762,580)	$ (743,154)
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity	$ (116,345)		(107,132)	$ (91,763)	(74,840)
Cumulative effect of change in accounting principle
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity			529		506
Cumulative effect of change in accounting principle \| ASU No. 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses		$ 700
Cumulative effect of change in accounting principle \| Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity			$ 529		$ 506
Cumulative effect of change in accounting principle \| Retained Earnings \| ASU No. 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity		$ 500