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Acquisitions and Divestitures Acquisitions and Divestitures - Phantom (Details) - Customer Relationships |  |  | 12 Months Ended
--- | --- | --- | ---
Sep. 17, 2015 | Jul. 28, 2014 | Jun. 03, 2017
Business Acquisition [Line Items] |  |  |
Useful Life |  |  | 9 years
Nelson Bubble Lamp Product Line [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Useful Life | 10 years |  |
Minimum | Acquisition Of Design Within Reach (DWR) [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Useful Life |  | 10 years |
Maximum | Acquisition Of Design Within Reach (DWR) [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Useful Life |  | 16 years |

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