Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Share-Based Compensation - Additional Information (Details)

v3.8.0.1
Stockholders' Equity and Share-Based Compensation - Additional Information (Details) - USD ($)
shares in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Amounts capitalized to internally-developed software $ 56,000 $ 83,000 $ 146,000  
Tax benefit valuation allowance recognized $ 0 $ 0 $ 0  
Stock options outstanding (in shares) 5,933 6,129 5,841  
Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Revised estimated forfeiture rate   10.00% 10.00% 10.00%
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Revised estimated forfeiture rate   34.00% 34.00% 34.00%
AutoMd 2014 Equity Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options outstanding (in shares) 0 1,405 1,430