Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2022

Quarterly Financial Information Disclosure [Abstract]

Unaudited quarterly results of operations

The table below summarizes the unaudited quarterly results of operations for the past two years (in thousands, except per share data):

	Quarter
	2022								2021
	First		Second		Third		Fourth		First		Second		Third		Fourth
Net sales	$	1,412,650	$	2,055,818	$	1,615,339	$	1,095,920	$	1,060,745	$	1,787,833	$	1,411,448	$	1,035,557
Gross profit	447,189		666,804		503,687		315,731		301,131		551,685		441,899		322,376
Net income	179,261		307,283		190,055		71,863		98,655		259,695		184,665		107,609
Earnings per share:
Basic	$	4.46	$	7.71	$	4.82	$	1.84	$	2.45	$	6.47	$	4.60	$	2.68
Diluted	$	4.41	$	7.63	$	4.78	$	1.82	$	2.42	$	6.37	$	4.54	$	2.65

The sum of basic and diluted earnings per share for each of the quarters may not equal the total basic and diluted earnings per share for the annual periods because of rounding differences and a difference in the way that in-the-money stock options are considered from quarter to quarter.