Annual report pursuant to Section 13 and 15(d)

Summary of Quarterly Financial Data (Unaudited) - Consolidated Statements of Income by Quarter (Details)

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Summary of Quarterly Financial Data (Unaudited) - Consolidated Statements of Income by Quarter (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jan. 01, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]        
Gross profit   $ 1,423,645 $ 1,521,017 $ 1,446,125
Net income (loss) $ (51,385) $ (51,385) $ 144,137 $ 51,650
Earnings (loss) per common share - Basic (usd per share)   $ (1.21) $ 3.35 $ 1.21
Earnings (loss) per common share - Diluted (usd per share)   $ (1.21) $ 3.30 $ 1.20
Executive transition costs     $ 6,300 $ 1,600