Goodwill and Intangible Assets - Components of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 28, 2019	Mar. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 61,963	$ 61,955
Accumulated amortization	(17,249)	(13,019)
Amortizable intangibles, net	44,714	48,936
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	48,743	48,782
Accumulated amortization	(12,407)	(9,052)
Amortizable intangibles, net	36,336	39,730
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	13,220	13,173
Accumulated amortization	(4,842)	(3,967)
Amortizable intangibles, net	$ 8,378	$ 9,206

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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