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RESTATEMENT - Impact of Restatement Adjustment on Statements of Income (Details) - 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, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]                              
Sales $ 232,700 $ 220,200 $ 251,400 $ 301,000 $ 293,200 $ 327,200 $ 333,300 $ 311,200 $ 313,600 $ 308,000 $ 311,200 $ 285,900 $ 1,005,266 $ 1,264,851 $ 1,218,709
Cost of sales                         728,070 915,062 882,866
Gross profit $ 62,600 $ 61,400 $ 70,100 $ 83,100 $ 77,500 $ 93,500 $ 92,800 $ 86,000 $ 88,200 $ 84,700 $ 85,600 $ 77,400 277,196 349,789 335,843
Selling, general and administrative expense                         244,981 282,377 263,757
Income (loss) before income taxes                         (48,313) 47,959 52,341
Provision for income taxes (benefit)                         (18,696) 11,194 14,107
Net income (loss) attributable to common shareholders                         $ (29,359) $ 36,935 $ 38,255
Basic (in dollars per share) $ (0.18) $ (1.95) $ 0.14 $ 0.34 $ 0.09 $ 0.78 $ 0.80 $ 0.44 $ 0.70 $ 0.50 $ 0.68 $ 0.30 $ (1.65) $ 2.10 $ 2.18
Diluted (in dollars per share) $ (0.18) $ (1.95) $ 0.13 $ 0.32 $ 0.08 $ 0.74 $ 0.76 $ 0.42 $ 0.67 $ 0.48 $ 0.65 $ 0.29 $ (1.65) $ 2.01 $ 2.08
As Reported                              
Error Corrections and Prior Period Adjustments Restatement [Line Items]                              
Sales $ 232,700 $ 220,200 $ 251,400 $ 301,000 $ 295,500 $ 327,200 $ 333,300 $ 311,200 $ 311,000 $ 308,000 $ 311,200 $ 285,900 $ 1,005,266 $ 1,267,189 $ 1,216,197
Cost of sales                         725,997 919,965 883,989
Gross profit $ 64,300 $ 61,300 $ 70,000 $ 84,000 $ 78,300 $ 92,700 $ 92,000 $ 84,200 $ 86,600 $ 84,100 $ 85,100 $ 76,400 279,269 347,224 332,208
Selling, general and administrative expense                         246,256 281,102 263,757
Income (loss) before income taxes                         (47,515) 46,669 48,706
Provision for income taxes (benefit)                         (18,441) 10,894 13,185
Net income (loss) attributable to common shareholders                         $ (28,816) $ 35,945 $ 35,542
Basic (in dollars per share) $ (0.11) $ (1.95) $ 0.12 $ 0.31 $ 0.12 $ 0.74 $ 0.76 $ 0.41 $ 0.63 $ 0.48 $ 0.66 $ 0.26 $ (1.62) $ 2.04 $ 2.02
Diluted (in dollars per share) $ (0.11) $ (1.95) $ 0.12 $ 0.31 $ 0.12 $ 0.71 $ 0.73 $ 0.40 $ 0.60 $ 0.46 $ 0.63 $ 0.25 $ (1.62) $ 1.96 $ 1.94