CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 63,542	$ 71,934
Accounts receivable, less allowances (2017 - $1,421; 2016 - $1,429)	114,708	103,316
Inventories	81,989	66,146
Taxes receivable	6,854	3,883
Prepaid expenses	4,780	4,085
Other current assets	7,105	6,242
Total current assets	278,978	255,606
Property, plant and equipment, at cost	377,226	359,961
Accumulated depreciation	(213,032)	(199,166)
Net, property, plant and equipment	164,194	160,795
Goodwill	66,854	63,606
Other intangible assets, net	41,273	41,447
Other assets, net	6,464	5,575
Total assets	557,763	527,029
Current liabilities:
Current portion of long-term debt	250	634
Accounts payable	69,429	56,346
Accrued payroll and other compensation	13,832	14,016
Accrued taxes	5,882	6,460
Other accrued liabilities	13,663	12,988
Total current liabilities	103,056	90,444
Long-term debt	107,048	128,141
Deferred tax liabilities	16,993	15,849
Benefit plan liabilities	12,354	14,729
Other long-term liabilities	5,146	4,410
Commitments and Contingencies (Note 14)
Stockholders’ equity:
Preferred stock	0	0
Common stock	249	249
Capital in excess of par value	84,987	82,387
Retained earnings	350,260	325,466
Accumulated other comprehensive loss	(33,137)	(47,950)
Treasury stock, at cost	(89,193)	(86,696)
Total stockholders’ equity	313,166	273,456
Total liabilities and stockholders’ equity	$ 557,763	$ 527,029