Interim Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net sales:
Net sales	$ 233,175	$ 174,738	$ 610,778	$ 511,231
Cost of sales	177,735	131,582	469,922	389,072
Gross profit	55,440	43,156	140,856	122,159
Selling, general and administrative expenses	33,914	27,830	93,903	79,533
Income from operations	21,526	15,326	46,953	42,626
Interest expense	(1,497)	(319)	(2,780)	(897)
Interest income	41	44	137	129
Other income, net	421	558	1,048	1,190
Income before income taxes	20,491	15,609	45,358	43,048
Provision for income taxes	7,124	4,276	15,558	12,978
Net Income	13,367	11,333	29,800	30,070
Net income per common share:
Basic (in dollars per share)	$ 1.11	$ 0.94	$ 2.47	$ 2.50
Diluted (in dollars per share)	$ 1.10	$ 0.93	$ 2.43	$ 2.47
Average common shares:
Basic (in shares)	12,050	12,069	12,077	12,040
Diluted (in shares)	12,206	12,229	12,251	12,196
Dividends declared (in dollars per share)	$ 0.07	$ 0.07	$ 0.21	$ 0.21
North American Industrial
Net sales:
Net sales	125,952	71,890	308,348	218,863
Income from operations	12,201	6,489	28,629	20,030
North American Agricultural
Net sales:
Net sales	57,668	61,157	160,144	168,048
Income from operations	4,594	6,250	9,384	16,261
European
Net sales:
Net sales	49,555	41,691	142,286	124,320
Income from operations	$ 4,731	$ 2,587	$ 8,940	$ 6,335