Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Data (Details)

v3.6.0.2
Quarterly Financial Data (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Quarterly Financial Data                      
Net sales $ 444,135 $ 453,102 $ 431,589 $ 414,024 $ 426,471 $ 427,888 $ 403,761 $ 358,460 $ 1,742,850 $ 1,616,580 $ 1,512,077
Gross profit 105,062 108,139 97,688 89,455 104,521 94,002 85,690 73,816 400,344 358,029 331,668
Operating profit (loss) 35,944 39,101 26,790 19,767 42,997 30,191 11,490 (1,147) 121,604 83,531 40,717
Income from continuing operations 21,307 24,566 15,615 11,116 59,669 16,624 6,630 (3,800) 72,606 79,123 10,496
Loss from discontinued operations         82   (235) 1   (152) (1,093)
Net income $ 21,307 $ 24,566 $ 15,615 $ 11,116 $ 59,751 $ 16,624 $ 6,395 $ (3,799) $ 72,606 $ 78,971 $ 9,403
Basic:                      
Income from continuing operations $ 0.57 $ 0.65 $ 0.41 $ 0.29 $ 1.58 $ 0.44 $ 0.18 $ (0.10) $ 1.93 $ 2.10 $ 0.28
Loss from discontinued operations, net             (0.01)       (0.03)
Net income 0.57 0.65 0.41 0.29 1.58 0.44 0.17 (0.10) 1.93 2.10 0.25
Diluted:                      
Income from continuing operations 0.57 0.65 0.41 0.29 1.57 0.44 0.18 (0.10) 1.92 2.09 0.28
Loss from discontinued operations, net             (0.01)       (0.03)
Net income $ 0.57 $ 0.65 $ 0.41 $ 0.29 $ 1.57 $ 0.44 $ 0.17 $ (0.10) $ 1.92 $ 2.09 $ 0.25