Annual report pursuant to Section 13 and 15(d)

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

v3.19.3.a.u2
Summary of Quarterly Financial Information - Summary of Unaudited Financial Data (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Statement [Abstract]                      
Sales $ 1,330,732 $ 1,353,998 $ 1,258,565 $ 1,276,756 $ 1,080,798 $ 1,176,395 $ 1,134,797 $ 1,250,078 $ 5,220,051 $ 4,642,068 $ 4,164,160
Gross profit 637,749 653,064 609,835 590,509 515,678 563,866 560,957 583,104 2,491,157 2,223,605 1,938,889
Net earnings (loss) 82,501 121,734 91,998 131,019 67,105 106,051 60,859 137,258 427,252 371,273 235,104
Net earnings (loss) attributable to Skechers U.S.A., Inc. $ 59,532 $ 103,090 $ 75,180 $ 108,758 $ 47,377 $ 90,728 $ 45,284 $ 117,652 $ 346,560 $ 301,041 $ 179,190
Net earnings (loss) per share:                      
Basic $ 0.39 $ 0.67 $ 0.49 $ 0.71 $ 0.31 $ 0.58 $ 0.29 $ 0.21 $ 2.26 $ 1.93 $ 1.15
Diluted $ 0.39 $ 0.67 $ 0.49 $ 0.71 $ 0.31 $ 0.58 $ 0.29 $ 0.21 $ 2.25 $ 1.92 $ 1.14