Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Condensed Consolidated Statements of Income
Sales	$ 2,476,487	$ 2,410,608
Cost of goods sold, including warehouse and distribution expenses	1,180,581	1,131,318
Gross profit	1,295,906	1,279,290
Selling, general and administrative expenses	872,345	834,504
Operating income	423,561	444,786
Other income (expense):
Interest expense	(39,386)	(34,291)
Interest income	675	554
Other, net	(5,190)	3,103
Total other expense	(43,901)	(30,634)
Income before income taxes	379,660	414,152
Provision for income taxes	79,222	93,000
Net income	$ 300,438	$ 321,152
Earnings per share-basic:
Earnings per share	$ 4.00	$ 4.09
Weighted-average common shares outstanding - basic	75,022	78,484
Earnings per share-assuming dilution:
Earnings per share	$ 3.97	$ 4.05
Weighted-average common shares outstanding - assuming dilution	75,663	79,297