Exit and Disposal Activity - Summary of Activity in Restructuring Accrual (Detail) $ in Thousands	12 Months Ended
Apr. 28, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring accrual, ending balance	$ 124
Upholstery Fabrics [Member] \| Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Accrual established in fiscal 2019	451
Paid in fiscal 2019	(538)
Adjustments in fiscal 2019	211
Restructuring accrual, ending balance	$ 124

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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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.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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