Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 33,421	$ 84,795
Accounts receivable, net of allowance for doubtful accounts of $384 and $235 at June 30, 2016 and December 31, 2015, respectively	67,072	60,485
Inventories	57,839	46,085
Prepaid expenses	4,232	3,208
Prepaid income taxes	4,530	0
Deferred income taxes	811	810
Other current assets	1,100	2,909
Total current assets	169,005	198,292
Property, plant and equipment, net	172,793	158,515
Goodwill	445,390	383,906
Intangible assets with finite lives, net	162,752	134,911
Other assets	4,352	4,062
Total assets	954,292	879,686
Current liabilities:
Trade accounts payable	18,163	14,708
Accrued expenses	16,082	12,829
Accrued compensation and other benefits	5,724	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	74,969	81,120
Long-term debt	243,732	260,963
Revolving loan - long-term	45,000	0
Deferred income taxes	87,259	67,215
Other long-term obligations	7,178	6,683
Total liabilities	458,138	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; 31,609,197 shares issued and outstanding at June 30, 2016 and 31,528,449 shares issued and 31,527,360 shares outstanding at December 31, 2015	2,108	2,102
Additional paid-in capital	128,809	122,594
Retained earnings	370,233	344,197
Accumulated other comprehensive loss	(4,996)	(5,114)
Treasury stock, at cost: 0 and 1,089 shares at June 30, 2016 and December 31, 2015, respectively	0	(74)
Total stockholders' equity	496,154	463,705
Total liabilities and stockholders' equity	$ 954,292	$ 879,686