Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 38,643	$ 84,795
Accounts receivable, net of allowance for doubtful accounts of $489 and $235 at December 31, 2016 and 2015, respectively	83,252	60,485
Inventories	57,245	46,085
Prepaid expenses	4,110	3,208
Deferred income taxes	712	810
Other current assets	4,480	2,909
Total current assets	188,442	198,292
Property, plant and equipment, net	165,754	158,515
Goodwill	439,811	383,906
Intangible assets with finite lives, net	147,484	134,911
Other assets	7,135	4,062
Total assets	948,626	879,686
Current liabilities:
Trade accounts payable	32,514	14,708
Accrued expenses	14,758	12,829
Accrued compensation and other benefits	6,648	5,128
Dividends payable	12,088	10,727
Income taxes payable	0	2,728
Current portion of long-term debt	35,000	35,000
Total current liabilities	101,008	81,120
Long-term debt	226,490	260,963
Revolving loan - long-term	19,000	0
Deferred income taxes	74,199	67,215
Other long-term obligations	6,896	6,683
Total liabilities	427,593	415,981
Commitments and contingencies (note 12)
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; 31,757,861 shares issued and outstanding at December 31, 2016 and 31,528,449 shares issued and 31,527,360 outstanding at December 31, 2015	2,117	2,102
Additional paid-in capital	137,676	122,594
Retained earnings	388,089	344,197
Accumulated other comprehensive loss	(6,849)	(5,114)
Treasury stock, at cost: 0 and 1,089 shares at December 31, 2016 and 2015, respectively	0	(74)
Total stockholders' equity	521,033	463,705
Total liabilities and stockholders' equity	$ 948,626	$ 879,686