Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues and other items:
Sales	$ 208,533	$ 221,245	$ 415,867	$ 455,416
Other income (expense), net	322	124	1,092	232
Total revenues, net of other expenses	208,855	221,369	416,959	455,648
Costs and expenses:
Cost of goods sold	169,830	183,754	332,882	373,185
Freight	7,066	7,743	14,067	15,068
Selling, general and administrative	19,782	21,898	39,644	38,971
Research and development	4,962	4,267	9,939	8,152
Amortization of intangibles	990	1,040	1,946	2,123
Interest expense	947	893	2,032	1,778
Asset impairments and costs associated with exit and disposal activities, net of adjustments	553	277	1,226	225
Total	204,130	219,872	401,736	439,502
Income before income taxes	4,725	1,497	15,223	16,146
Income taxes from continuing operations	1,317	903	4,533	5,682
Net income	$ 3,408	$ 594	$ 10,690	$ 10,464
Basic
Basic	$ 0.10	$ 0.02	$ 0.33	$ 0.32
Diluted
Diluted	$ 0.10	$ 0.02	$ 0.33	$ 0.32
Shares used to compute earnings per share:
Basic	32,716	32,609	32,685	32,546
Diluted	32,716	32,746	32,685	32,687
Dividends per share	$ 0.11	$ 0.11	$ 0.22	$ 0.2