Consolidated Statements of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net sales:
Total net sales	$ 2,534,354	$ 2,447,521	$ 7,928,581	$ 6,870,090
Costs of goods sold:
Total costs of goods sold	2,135,096	2,082,976	6,712,573	5,807,388
Gross profit	399,258	364,545	1,216,008	1,062,702
Operating expenses:
Selling and administrative expenses	308,253	278,998	911,894	827,275
Severance and restructuring expenses, net	720	2,396	2,784	(3,217)
Acquisition and integration related expenses	6	0	1,646	0
Earnings from operations	90,279	83,151	299,684	238,644
Non-operating (income) expense:
Interest expense, net	11,713	10,332	29,164	29,884
Other expense (income), net	1,790	(1,589)	(741)	(855)
Earnings before income taxes	76,776	74,408	271,261	209,615
Income tax expense	19,460	18,925	68,130	52,403
Net earnings	$ 57,316	$ 55,483	$ 203,131	$ 157,212
Net earnings per share:
Basic (in usd per share)	$ 1.64	$ 1.59	$ 5.80	$ 4.49
Diluted (in usd per share)	$ 1.58	$ 1.51	$ 5.53	$ 4.27
Shares used in per share calculations:
Basic (in shares)	34,952	34,855	35,003	35,050
Diluted (in shares)	36,340	36,745	36,714	36,860
Products
Net sales:
Total net sales	$ 2,169,197	$ 2,124,239	$ 6,828,726	$ 5,906,437
Costs of goods sold:
Total costs of goods sold	1,956,679	1,930,096	6,199,783	5,367,083
Gross profit	212,518	194,143	628,943	539,354
Services
Net sales:
Total net sales	365,157	323,282	1,099,855	963,653
Costs of goods sold:
Total costs of goods sold	178,417	152,880	512,790	440,305
Gross profit	$ 186,740	$ 170,402	$ 587,065	$ 523,348