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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