Quarterly Financial Data (Unaudited) - Summary of Impact to Net Sales and SD&A Expenses (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||
---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2018 |
Jul. 01, 2018 |
Apr. 01, 2018 |
Dec. 31, 2017 |
Oct. 01, 2017 |
Jul. 02, 2017 |
Apr. 02, 2017 |
Dec. 31, 2017 |
Jan. 01, 2017 |
|
Distribution Rights and Sponsorship Privileges [Member] | |||||||||
Impact to net sales and SD&A expenses | $ (7,628) | $ (7,269) | $ (7,307) | $ (8,519) | $ (9,965) | $ (9,487) | $ (8,109) | $ 36,100 | $ 26,300 |