Condensed Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net sales	$ 945,852	$ 975,321	$ 1,935,305	$ 1,970,286
Cost of goods sold	477,528	488,999	986,275	997,335
Gross profit	468,324	486,322	949,030	972,951
Selling, general and administrative expenses	361,626	368,461	728,614	739,748
Restructuring	(5,814)	6,759	(1,834)	11,969
Operating earnings	112,512	111,102	222,250	221,234
Interest expense	23,821	25,262	48,310	49,277
Earnings before provision for income taxes	88,691	85,840	173,940	171,957
Provision for income taxes	22,966	24,469	42,488	27,322
Net earnings	$ 65,725	$ 61,371	$ 131,452	$ 144,635
Earnings per share:
Basic	$ 0.55	$ 0.49	$ 1.10	$ 1.15
Diluted	$ 0.54	$ 0.49	$ 1.09	$ 1.14
Weighted average shares:
Basic	120,077	124,270	120,033	126,046
Diluted	120,991	125,057	120,949	126,834