The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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)(2)
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Apr. 04, 2020	Mar. 30, 2019	Dec. 28, 2019
Indefinite-lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 4,700,000	$ 4,000,000.0
COVID-19 [Member]
Indefinite-lived Intangible Assets [Line Items]
Percentage of impairment of long term average growth rate	7.00%
Percentage of impairment of terminal growth rate	3.00%		3.00%
Impairment of other intangible assets carrying value	$ 73,000,000.0
Impairment of other intangible assets exceed fair value	6,000,000
Impairment	0
COVID-19 [Member] \| Western Window Systems [Member]
Indefinite-lived Intangible Assets [Line Items]
Decrease in potential sales target	$ 133,000,000