Interim Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net sales:
Total net sales	$ 285,186	$ 257,125	$ 547,120	$ 495,212
Cost of sales	212,053	190,671	410,679	368,501
Gross profit	73,133	66,454	136,441	126,711
Selling, general and administrative expenses	43,784	39,668	84,486	78,564
Income from operations	29,349	26,786	51,955	48,147
Interest expense	(1,935)	(1,497)	(3,385)	(2,834)
Interest income	330	109	503	209
Other expense, net	(295)	(92)	(684)	(226)
Income before income taxes	27,449	25,306	48,389	45,296
Provision for income taxes	6,782	6,535	12,469	11,942
Net Income	$ 20,667	$ 18,771	$ 35,920	$ 33,354
Net income per common share:
Basic (in dollars per share)	$ 1.76	$ 1.61	$ 3.07	$ 2.87
Diluted (in dollars per share)	$ 1.75	$ 1.60	$ 3.05	$ 2.84
Average common shares:
Basic (in shares)	11,726	11,652	11,712	11,629
Diluted (in shares)	11,798	11,759	11,787	11,749
Dividends declared (in dollars per share)	$ 0.12	$ 0.11	$ 0.24	$ 0.22
Industrial
Net sales:
Total net sales	$ 168,000	$ 150,031	$ 326,425	$ 282,198
Income from operations	20,172	16,165	36,644	27,965
Agricultural
Net sales:
Total net sales	55,159	59,071	108,332	117,718
Income from operations	4,234	6,186	6,406	11,439
European
Net sales:
Total net sales	62,027	48,023	112,363	95,296
Income from operations	$ 4,943	$ 4,435	$ 8,905	$ 8,743