Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 34,741	$ 38,643
Accounts receivable, net of allowance for doubtful accounts of $427 and $489 at September 30, 2017 and December 31, 2016, respectively	86,715	83,252
Inventories	59,624	57,245
Prepaid expenses	3,230	4,110
Prepaid income taxes	5,375	0
Deferred income taxes	0	712
Other current assets	3,924	4,480
Total current assets	193,609	188,442
Property, plant and equipment, net	184,246	165,754
Goodwill	441,259	439,811
Intangible assets with finite lives, net	134,511	147,484
Other assets	5,213	7,135
Total assets	958,838	948,626
Current liabilities:
Trade accounts payable	24,952	32,514
Accrued expenses	23,286	14,758
Accrued compensation and other benefits	6,529	6,648
Dividends payable	19	12,088
Current portion of long-term debt	35,000	35,000
Total current liabilities	89,786	101,008
Long-term debt	200,600	226,490
Revolving loan - long-term	0	19,000
Deferred income taxes	77,096	74,199
Other long-term obligations	5,417	6,896
Total liabilities	372,899	427,593
Commitments and contingencies (note 15)
Stockholders' equity:
Preferred stock, $25 par value. Authorized 2,000,000 shares; none issued and outstanding	0	0
Common stock, $.0667 par value. Authorized 120,000,000 shares; 31,997,587 shares issued and outstanding at September 30, 2017 and 31,757,861 shares issued and outstanding at December 31, 2016	2,133	2,117
Additional paid-in capital	149,699	137,676
Retained earnings	436,185	388,089
Accumulated other comprehensive loss	(2,078)	(6,849)
Total stockholders' equity	585,939	521,033
Total liabilities and stockholders' equity	$ 958,838	$ 948,626