Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 39,172	$ 84,795
Accounts receivable, net of allowance for doubtful accounts of $285 and $235 at March 31, 2016 and December 31, 2015, respectively	69,365	60,485
Inventories	60,444	46,085
Prepaid expenses	2,979	3,208
Prepaid income taxes	1,373	0
Deferred income taxes	819	810
Other current assets	3,306	2,909
Total current assets	177,458	198,292
Property, plant and equipment, net	173,068	158,515
Goodwill	441,668	383,906
Intangible assets with finite lives, net	173,769	134,911
Other assets	4,263	4,062
Total assets	970,226	879,686
Current liabilities:
Trade accounts payable	23,313	14,708
Accrued expenses	15,523	12,829
Accrued compensation and other benefits	4,783	5,128
Dividends payable	0	10,727
Income taxes payable	0	2,728
Current portion of long-term debt	35,000	35,000
Total current liabilities	78,619	81,120
Long-term debt	252,350	260,963
Revolving loan - long-term	65,000	0
Deferred income taxes	87,067	67,215
Other long-term obligations	6,939	6,683
Total liabilities	$ 489,975	$ 415,981
Commitments and contingencies (note 14)
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; 31,575,778 shares issued and outstanding at March 31, 2016 and 31,528,449 shares issued and 31,527,360 shares outstanding at December 31, 2015	2,105	2,102
Additional paid-in capital	125,926	122,594
Retained earnings	356,083	344,197
Accumulated other comprehensive loss	(3,863)	(5,114)
Treasury stock, at cost: 0 and 1,089 shares at March 31, 2016 and December 31, 2015, respectively	0	(74)
Total stockholders' equity	480,251	463,705
Total liabilities and stockholders' equity	$ 970,226	$ 879,686