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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
Showroom
State
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]      
Number of showrooms | Showroom 124    
Number of states | State 16    
Cash and Cash Equivalents [Abstract]      
Period of settlement for amounts due from third-party financial institutions for credit and debit card transactions 5 days    
Other Income, net [Abstract]      
Settlement related to credit card litigation $ 800    
Insurance recovery receivable   $ 0  
Gains on insurance recovery (3,338) 0 $ 0
Gain on sale of former retail location 700    
Investments [Abstract]      
Certificates of deposit with remaining maturities less than six months   9,975  
Certificates of deposit with remaining maturities less than one year   2,750  
Revenue Recognition [Abstract]      
Delivery fees 25,467 27,650 27,293
Deliveries expense 39,222 37,730 36,395
Selling, General and Administrative Expenses [Abstract]      
Purchasing, warehousing, delivery and other distribution costs 77,266 73,803 70,420
Deferred Escalating Minimum Rent and Lease Incentives [Abstract]      
Liability for deferred escalating minimum rent 8,797 9,980  
Lease incentives 676 981  
Advertising Expense [Abstract]      
Prepaid advertising cost 324 1,086  
Advertising expense 45,132 45,784 45,067
Interest Expense, net [Abstract]      
Interest expense 2,568 2,615 1,423
Self-Insurance [Abstract]      
Self-insurance reserves 9,095 9,092  
Fair Values of Financial Instruments [Abstract]      
Other assets fair value $ 4,410 $ 3,335  
Earnings Per Share [Abstract]      
Percentage of earnings or losses assumed in calculation 100.00% 100.00%  
Accumulated Other Comprehensive Income (Loss) [Abstract]      
Unrecognized pension liability $ 1,830 $ 1,938  
Other Expenses [Member]      
Other Income, net [Abstract]      
Gains on insurance recovery 1,110    
Buildings [Member]      
Other Income, net [Abstract]      
Gains on insurance recovery $ 2,228    
Buildings [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 25 years    
Buildings [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 33 years    
Improvements [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 5 years    
Improvements [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 15 years    
Furniture and Fixtures [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 3 years    
Furniture and Fixtures [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 15 years    
Equipment [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 3 years    
Equipment [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 15 years    
Buildings under Lease [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life of property and equipment 15 years    
ASU 2014-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Tax (cost) benefit related to stock-based plans $ (121) $ 253 $ 896