Annual report pursuant to Section 13 and 15(d)

Summary of Quarterly Financial Information - Summary of Financial Data (Detail)

v3.20.4
Summary of Quarterly Financial Information - Summary of Financial Data (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Statement [Abstract]                      
Sales $ 1,324,711 $ 1,300,886 $ 729,472 $ 1,242,345 $ 1,330,732 $ 1,353,998 $ 1,258,565 $ 1,276,756 $ 4,597,414 $ 5,220,051 $ 4,642,068
Gross profit 648,426 625,121 368,566 547,668 637,748 653,064 609,835 590,509 2,189,781 2,491,157 2,223,605
Net earnings (loss) 78,172 82,110 (55,217) 41,160 82,501 121,734 91,998 131,019 146,227 427,252 371,273
Net earnings (loss) attributable to Skechers U.S.A., Inc. $ 53,282 $ 64,278 $ (68,097) $ 49,101 $ 59,532 $ 103,090 $ 75,180 $ 108,758 $ 98,564 $ 346,560 $ 301,041
Net earnings (loss) per share:                      
Basic $ 0.34 $ 0.42 $ (0.44) $ 0.32 $ 0.39 $ 0.67 $ 0.49 $ 0.71 $ 0.64 $ 2.26 $ 1.93
Diluted $ 0.34 $ 0.41 $ (0.44) $ 0.32 $ 0.39 $ 0.67 $ 0.49 $ 0.71 $ 0.64 $ 2.25 $ 1.92