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Retirement Plans - Additional Information (Detail) - Defined Contribution Savings Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
U.S [Member]
Defined Contribution Plan Disclosure [Line Items]
Minimum contribution by employees participating to plan	1.00%
Maximum contribution by employees participating to plan	25.00%
Expenses recognized under contribution plan	$ 2.4	$ 0.6
Employer matching contribution to plan	50.00%		0.00%
Employer matching contribution, first pay	6.00%
Canada [Member]
Defined Contribution Plan Disclosure [Line Items]
Expenses recognized under contribution plan	$ 0.6	$ 0.6	$ 0.6

X

- Definition

Defined contribution plan minimum annual contributions per employee percent.

+ References

No definition available.

+ Details

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X

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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X

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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X

- Details

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- Details

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- Details

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