Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 36,997	$ 38,643
Accounts receivable, net of allowance for doubtful accounts of $547 and $489 at March 31, 2017 and December 31, 2016, respectively	79,171	83,252
Inventories	62,867	57,245
Prepaid expenses	3,339	4,110
Deferred income taxes	0	712
Other current assets	4,582	4,480
Total current assets	186,956	188,442
Property, plant and equipment, net	164,626	165,754
Goodwill	439,811	439,811
Intangible assets with finite lives, net	140,541	147,484
Other assets	9,451	7,135
Total assets	941,385	948,626
Current liabilities:
Trade accounts payable	21,543	32,514
Accrued expenses	19,555	14,758
Accrued compensation and other benefits	4,170	6,648
Dividends payable	19	12,088
Income taxes payable	4,505	0
Current portion of long-term debt	35,000	35,000
Total current liabilities	84,792	101,008
Long-term debt	217,864	226,490
Revolving loan - long-term	16,000	19,000
Deferred income taxes	73,495	74,199
Other long-term obligations	6,933	6,896
Total liabilities	399,084	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; 31,866,924 shares issued and outstanding at March 31, 2017 and 31,757,861 shares issued and outstanding at December 31, 2016	2,125	2,117
Additional paid-in capital	142,867	137,676
Retained earnings	403,607	388,089
Accumulated other comprehensive loss	(6,298)	(6,849)
Total stockholders' equity	542,301	521,033
Total liabilities and stockholders' equity	$ 941,385	$ 948,626