Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Information (unaudited) (Details)

v3.10.0.1
Selected Quarterly Financial Information (unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 27, 2018
Sep. 27, 2018
Jun. 28, 2018
Mar. 29, 2018
Dec. 28, 2017
Sep. 28, 2017
Jun. 29, 2017
Mar. 30, 2017
Dec. 27, 2018
Dec. 28, 2017
Dec. 29, 2016
Quarterly Financial Information Disclosure [Abstract]                      
Net Sales $ 436,739 $ 435,882 $ 434,279 $ 402,948 $ 389,501 $ 343,923 $ 344,047 $ 307,296 $ 1,709,848 $ 1,384,767 $ 1,050,759
Gross Profit 181,018 178,226 177,638 165,386 162,374 142,491 142,228 125,471 702,268 572,564 429,262
Income from continuing operations $ 23,313 $ 34,237 $ 37,245 $ 36,506 $ 32,401 $ 28,596 $ 34,102 $ 22,672      
Basic earnings from continuing operations per share $ 0.24 $ 0.35 $ 0.39 $ 0.38 $ 0.34 $ 0.30 $ 0.38 $ 0.27      
Diluted earnings from continuing operations per share $ 0.22 $ 0.33 $ 0.35 $ 0.35 $ 0.31 $ 0.28 $ 0.34 $ 0.26      
Net income $ 17,902 $ 26,568 $ 39,846 $ 31,871 $ 47,976 $ 23,255 $ 20,429 $ 11,128 $ 116,187 $ 102,788 $ 43,039
Basic earnings per share $ 0.18 $ 0.27 $ 0.41 $ 0.33 $ 0.51 $ 0.25 $ 0.22 $ 0.13 $ 1.20 $ 1.13 $ 0.52
Diluted earnings per share $ 0.17 $ 0.25 $ 0.38 $ 0.30 $ 0.46 $ 0.22 $ 0.20 $ 0.13 $ 1.11 $ 1.03 $ 0.49