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Warranty Reserves (Tables)
3 Months Ended
Mar. 31, 2018
Product Warranties Disclosures [Abstract]  
Schedule of changes in the aggregate warranty reserve

The following reconciliation provides an illustration of changes in the aggregate warranty reserve. 

 

    13-Weeks Ended  
    March 31,
2018
    April 1,
2017
 
             
Balance - beginning of period   $ 36,827     $ 37,233  
Accrual for products sold during the period     10,012       8,200  
Expenditures     (11,417 )     (11,006 )
Balance - end of period   $ 35,422     $ 34,427