Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 84,795	$ 50,287
Accounts receivable, net of allowance for doubtful accounts of $235 and $288 at December 31, 2015 and 2014, respectively	60,485	71,982
Inventories	46,085	49,623
Prepaid expenses	3,208	4,545
Deferred income taxes	810	1,390
Other current assets	3,446	3,475
Total current assets	198,829	181,302
Property, plant and equipment, net	158,515	131,588
Goodwill	383,906	383,906
Intangible assets with finite lives, net	134,911	160,394
Other assets	5,062	4,341
Total assets	881,223	861,531
Current liabilities:
Trade accounts payable	14,708	24,352
Accrued expenses	12,829	15,614
Accrued compensation and other benefits	5,128	9,137
Dividends payable	10,727	9,251
Income taxes payable	2,728	2,168
Current portion of long-term debt	35,000	35,000
Total current liabilities	81,120	95,522
Long-term debt	262,500	297,500
Deferred income taxes	67,215	70,661
Other long-term obligations	6,683	5,950
Total liabilities	$ 417,518	$ 469,633
Commitments and contingencies (note 11)
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; 31,528,449 shares issued and 31,527,360 outstanding at December 31, 2015 and 30,845,586 shares issued and outstanding at December 31, 2014	2,102	2,058
Additional paid-in capital	122,594	97,289
Retained earnings	344,197	295,202
Accumulated other comprehensive (loss)/income	(5,114)	(2,651)
Treasury stock, at cost: 1,089 and 0 shares at December 31, 2015 and 2014, respectively	(74)	0
Total stockholders' equity	463,705	391,898
Total liabilities and stockholders' equity	$ 881,223	$ 861,531