Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 4,559,532	$ 4,736,833
Cost of goods sold	3,058,741	3,228,665
Gross profit	1,500,791	1,508,168
Operating expenses:
Selling, administrative and other expenses	1,232,743	1,203,905
Depreciation and amortization	70,443	61,977
Provision for doubtful accounts	7,300	3,969
Business Exit Costs	1,439	0
Total operating expenses	1,311,925	1,269,851
Non-operating (income) expenses:
Interest expense	20,969	23,883
Other	(11,048)	2,922
Total non-operating (income) expenses	9,921	26,805
Income before income taxes	178,945	211,512
Income taxes	42,410	51,262
Net income	$ 136,535	$ 160,250
Basic net income per common share (usd per share)	$ 0.94	$ 1.10
Diluted net income per common share (usd per share)	0.94	1.09
Dividends declared per common share (usd per share)	$ 0.7900	$ 0.7625
Weighted average common shares outstanding (in shares)	145,052	145,981
Dilutive effect of stock options and non-vested restricted stock awards (in shares)	571	713
Weighted average common shares outstanding - assuming dilution (in shares)	145,623	146,694
Other comprehensive income (loss), net of income taxes:
Foreign currency translation adjustments, net of income taxes in 2020 and 2019 — $15,560 and $7,710 respectively	$ (182,613)	$ 47,964
Cash flow hedge adjustments, net of income taxes in 2020 and 2019 — $6,604 and $1,915, respectively	(17,856)	(5,179)
Pension and postretirement benefit adjustments, net of income taxes in 2020 and 2019 — $3,017 and $1,788, respectively	8,448	4,832
Other comprehensive income (loss), net of income taxes	(192,021)	47,617
Comprehensive income (loss)	$ (55,486)	$ 207,867