Interim Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net sales:
Net sales	$ 215,734	$ 207,751	$ 423,532	$ 380,361
Cost of sales	165,069	160,465	327,330	294,945
Gross profit	50,665	47,286	96,202	85,416
Selling, general and administrative expenses	34,230	32,490	67,639	59,989
Income from operations	16,435	14,796	28,563	25,427
Interest expense	(1,848)	(1,044)	(3,471)	(1,283)
Interest income	41	35	93	96
Other income, net	488	153	1,348	627
Income before income taxes	15,116	13,940	26,533	24,867
Provision for income taxes	5,406	4,745	9,464	8,434
Net Income	$ 9,710	$ 9,195	$ 17,069	$ 16,433
Net income per common share:
Basic (in dollars per share)	$ 0.86	$ 0.76	$ 1.51	$ 1.36
Diluted (in dollars per share)	$ 0.84	$ 0.75	$ 1.49	$ 1.34
Average common shares:
Basic (in shares)	11,352	12,097	11,316	12,090
Diluted (in shares)	11,498	12,276	11,467	12,273
Dividends declared (in dollars per share)	$ 0.08000	$ 0.07000	$ 0.16000	$ 0.14000
North American Industrial
Net sales:
Net sales	$ 118,521	$ 105,476	$ 235,433	$ 183,187
Income from operations	10,100	10,128	19,437	16,428
North American Agricultural
Net sales:
Net sales	52,981	53,635	101,438	104,443
Income from operations	3,722	2,375	4,514	4,790
European
Net sales:
Net sales	44,232	48,640	86,661	92,731
Income from operations	$ 2,613	$ 2,293	$ 4,612	$ 4,209