Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v3.8.0.1
Summary of Significant Accounting Policies (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Summary of Investment Holdings [Line Items]      
Impairment charge of long-lived assets $ 1,401,000 $ 4,310,000 $ 4,171,000
Inventory planning, receiving and handling costs 73,880,000 65,757,000 61,338,000
Advertising costs 121,839,000 118,663,000 120,764,000
Cooperative Advertising Expense 6,555,000 8,699,000 10,008,000
Unrealized gains (losses) on derivative transactions, net $ (16,846,000) $ 843,000 $ (2,908,000)
Minimum [Member]      
Summary of Investment Holdings [Line Items]      
Delivery time by geographic location (in days) 1    
Maximum [Member]      
Summary of Investment Holdings [Line Items]      
Delivery time by geographic location (in days) 7    
Building and Building Improvements [Member] | Minimum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 15 years    
Building and Building Improvements [Member] | Maximum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 30 years    
Land Improvements [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 15 years    
Furniture and Fixtures [Member] | Minimum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 3 years    
Furniture and Fixtures [Member] | Maximum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 10 years    
Machinery and Equipment [Member] | Minimum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 3 years    
Machinery and Equipment [Member] | Maximum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 10 years    
Leasehold Improvements [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 7 years    
Software and Software Development Costs [Member] | Minimum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 3 years    
Software and Software Development Costs [Member] | Maximum [Member]      
Summary of Investment Holdings [Line Items]      
Property, plant and equipment, useful life minimum (years) 10 years    
Retained Earnings [Member]      
Summary of Investment Holdings [Line Items]      
Unrealized gains (losses) on derivative transactions, net $ 1,159,000    
Difference between Revenue Guidance in Effect before and after Topic 606 | Pro Forma | ASU 2014-09      
Summary of Investment Holdings [Line Items]      
Percent of net sales that will be classified as a component of SG&A expenses 2.00%