CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Net sales	$ 771,582	$ 685,740	$ 571,459
Costs and expenses:
Cost of sales	490,397	436,918	350,807
Selling, general and administrative expenses	162,431	148,433	131,493
Amortization of intangible assets	18,328	16,338	11,630
Interest expense, net	8,748	4,578	1,308
Other expenses (income), net	3,655	(680)	7,801
Total costs and expenses	683,559	605,587	503,039
Earnings before income tax	88,023	80,153	68,420
Income tax (benefit) expense	(4,113)	26,450	22,538
Net earnings	$ 92,136	$ 53,703	$ 45,882
Basic:
Net earnings	$ 3.56	$ 2.08	$ 1.78
Diluted:
Net earnings	$ 3.54	$ 2.07	$ 1.77
Average common shares outstanding (in thousands):
Basic	25,874	25,774	25,762
Diluted	26,058	25,995	25,968