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Revenue from Contracts with Customers - Revenue Disaggregated By Product Type And Reportable Segment (Details) - USD ($) $ in Millions | 3 Months Ended
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Sep. 01, 2018 | Sep. 02, 2017
Disaggregation of Revenue [Line Items] |  |
Net sales | $ 624.6 | $ 580.3
North American Furniture Solutions |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 343.7 | 328.6
North American Furniture Solutions | Systems |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 144.5 |
North American Furniture Solutions | Seating |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 96.6 |
North American Furniture Solutions | Freestanding and storage |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 74.7 |
North American Furniture Solutions | Other |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 27.9 |
ELA Furniture Solutions |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 115.4 | 93.4
ELA Furniture Solutions | Systems |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 22.8 |
ELA Furniture Solutions | Seating |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 68.7 |
ELA Furniture Solutions | Freestanding and storage |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 10.4 |
ELA Furniture Solutions | Other |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 13.5 |
Specialty |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 77.3 | 75.1
Specialty | Systems |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 1.6 |
Specialty | Seating |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 29.0 |
Specialty | Freestanding and storage |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 12.9 |
Specialty | Textiles |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 28.8 |
Specialty | Other |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 5.0 |
Consumer |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 88.2 | $ 83.2
Consumer | Seating |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 53.7 |
Consumer | Freestanding and storage |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | 17.2 |
Consumer | Other |  |
Disaggregation of Revenue [Line Items] |  |
Net sales | $ 17.3 |

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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