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Restructuring and Impairment Charges - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) | Jan. 02, 2016 USD ($) | Jan. 03, 2015 USD ($) facility
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ 5,229 | $ 505 | $ 3,638
Hearth manufacturing facility, held for sale | 5,200 |  |
Goodwill impairment | 2,876 | 2,963 |
Office Furniture |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs |  | 400 | $ 8,800
Office furniture manufacturing facilities closed (number) | facility |  |  | 3
Goodwill impairment | 2,876 | 2,963 |
Hearth Products |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs |  | 900 |
Goodwill impairment | 0 | 0 |
Cost of Sales | Hearth Products |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  | 800 |
Restructuring and Impairment Charges |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Goodwill impairment | 5,800 | $ 11,200 | $ 29,400
Facility exit costs | Office Furniture |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 10,500 |  |
Facility exit costs | Cost of Sales | Machinery and equipment | Office Furniture |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring accelerated depreciation costs |  |  | 5,200
Severance and facility exit costs | Office Furniture |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | $ 3,600
Severance and facility exit costs | Cost of Sales | Office Furniture |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ 5,300 |  |

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