Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 42,671	$ 40,416
Accounts receivable, net of allowance for doubtful accounts of $545 and $431 at September 30, 2018 and December 31, 2017, respectively	101,205	91,226
Inventories	71,778	60,696
Prepaid expenses	3,769	4,774
Prepaid income taxes	4,546	0
Assets held for sale	237	0
Other current assets	1,500	2,224
Total current assets	225,706	199,336
Property, plant and equipment, net	194,081	189,793
Goodwill	449,015	441,361
Intangible assets with finite lives, net	111,142	128,073
Other assets	6,132	5,073
Total assets	986,076	963,636
Current liabilities:
Trade accounts payable	32,891	28,451
Accrued expenses	20,590	22,930
Accrued compensation and other benefits	12,431	8,531
Dividends payable	39	13,484
Current portion of long-term debt	0	35,000
Total current liabilities	65,951	108,396
Revolving loan	178,000	0
Long-term debt	0	183,964
Deferred income taxes	49,461	48,548
Other long-term obligations	7,462	5,847
Total liabilities	300,874	346,755
Commitments and contingencies (note 16)
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; 32,250,152 and 32,019,605 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	2,150	2,135
Additional paid-in capital	163,870	151,749
Retained earnings	522,879	464,639
Accumulated other comprehensive loss	(3,697)	(1,642)
Total stockholders' equity	685,202	616,881
Total liabilities and stockholders' equity	$ 986,076	$ 963,636