CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenue	$ 1,810,706	$ 1,798,094	$ 3,535,463	$ 3,435,765
Cost of goods and services	1,138,113	1,132,858	2,239,328	2,167,700
Gross profit	672,593	665,236	1,296,135	1,268,065
Selling, General and Administrative Expense	396,634	428,775	805,100	863,801
Loss on assets held for sale	0	0	(46,946)	0
Operating earnings	275,959	236,461	444,089	404,264
Interest Expense	31,754	32,125	63,562	67,765
Interest Income	(945)	(2,563)	(1,835)	(4,620)
Other income, net	(4,589)	(4,538)	(5,695)	(4,568)
Earnings before provision for income taxes	249,739	211,437	388,057	345,687
Provision for income taxes	51,654	44,981	84,267	69,822
Earnings from continuing operations	198,085	166,456	303,790	275,865
Loss from discontinued operations	0	(26,497)	0	(4,472)
Net earnings	$ 198,085	$ 139,959	$ 303,790	$ 271,393
Earnings per share from continuing operations
Earnings from continuing operations (in dollars per basic share)	$ 1.36	$ 1.10	$ 2.09	$ 1.80
Earnings from continuing operations (in dollars per diluted share)	1.35	1.08	2.07	1.77
Earnings (loss) per share from discontinued operations:
Earnings (loss) per share from discontinued operations (in dollars per basic share)	0	(0.17)	0	(0.03)
Earnings (loss) per share from discontinued operations (in dollars per diluted share)	0	(0.17)	0	(0.03)
Net earnings per share:
Net earnings (in dollars per basic share)	1.36	0.92	2.09	1.77
Net earnings (in dollars per diluted share)	$ 1.35	$ 0.91	$ 2.07	$ 1.74
Weighted average shares outstanding:
Weighted average shares outstanding - basic	145,366,000	151,744,000	145,227,000	153,124,000
Weighted average shares outstanding - diluted	147,179,000	153,938,000	147,041,000	155,573,000