Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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- Definition

The amount of inventory recognized as of the acquisition date.

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-Publisher FASB
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The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

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- 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.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Aggregation of the liabilities reported on the balance sheet measured at fair value on a nonrecurring basis by the entity.

+ References

No definition available.

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Fair Value of Financial Instruments - Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Apr. 29, 2018	Apr. 01, 2018	Apr. 30, 2017	May 01, 2016	May 03, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
goodwill	$ 13,569		$ 11,462	$ 11,462	$ 11,462
Read Window Products LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
goodwill		$ 2,107
Inventory		1,128
Equipment		379
Liabilities measured at fair value on a nonrecurring basis	0
Read Window Products LLC [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
goodwill	2,107
Inventory	1,128
Read Window Products LLC [Member] \| Customer Relationships [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Customer Relationships		2,247
Read Window Products LLC [Member] \| Customer Relationships [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Customer Relationships	2,247
Read Window Products LLC [Member] \| Trade Names [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tradename	683	$ 683
Read Window Products LLC [Member] \| Trade Names [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tradename	683
Equipment [Member] \| Read Window Products LLC [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equipment	379
Quoted prices in active markets for identical assets - Level 1 [Member] \| Read Window Products LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities measured at fair value on a nonrecurring basis	0
Significant other observable inputs - Level 2 [Member] \| Read Window Products LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities measured at fair value on a nonrecurring basis	0
Significant unobservable inputs - Level 3 [Member] \| Read Window Products LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities measured at fair value on a nonrecurring basis	0
Significant unobservable inputs - Level 3 [Member] \| Read Window Products LLC [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
goodwill	2,107
Inventory	1,128
Significant unobservable inputs - Level 3 [Member] \| Read Window Products LLC [Member] \| Customer Relationships [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Customer Relationships	2,247
Significant unobservable inputs - Level 3 [Member] \| Read Window Products LLC [Member] \| Trade Names [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tradename	683
Significant unobservable inputs - Level 3 [Member] \| Equipment [Member] \| Read Window Products LLC [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equipment	$ 379