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v3.5.0.1

Segment Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2016 USD ($) store segment item | Apr. 25, 2015 USD ($) | Apr. 26, 2014 USD ($)
Segment Information |  |  |
Pre-tax restructuring expense (income) | $ 579 | $ (360) | $ 8,071
Continuing Operations |  |  |
Segment Information |  |  |
Pre-tax restructuring expense (income) | $ 579 | $ (371) | $ 4,839
Upholstery Segment |  |  |
Segment Information |  |  |
Number of operating units | segment | 2 |  |
Casegoods Segment |  |  |
Segment Information |  |  |
Number of brands | item | 3 |  |
Retail Segment |  |  |
Segment Information |  |  |
Number of stores | store | 124 |  |

X
- Definition Represents the number of brands. + References No definition available. + Details
Name: | lzb_NumberOfBrands
Namespace Prefix: | lzb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of operating units within a segment. + References No definition available. + Details
Name: | lzb_NumberOfOperatingUnits
Namespace Prefix: | lzb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan, including expenses from discontinued operations, net of reversals or recoveries. + References No definition available. + Details
Name: | lzb_RestructuringChargesIncludingDiscontinuedOperations
Namespace Prefix: | lzb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the number of stores. + References No definition available. + Details
Name: | us-gaap_NumberOfStores
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementOperatingActivitiesSegmentAxis=us-gaap_SegmentContinuingOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lzb_UpholsterySegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lzb_CasegoodsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lzb_RetailSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |