Condensed Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 59,714	$ 208,747
Accounts receivable, net of allowance for doubtful accounts of $183 and $115 at June 30, 2014 and December 31, 2013	74,459	39,386
Inventories	57,034	24,824
Prepaid expenses	3,850	2,580
Prepaid income taxes	0	899
Deferred income taxes	1,009	893
Other current assets	3,205	445
Total current assets	199,271	277,774
Property, plant and equipment, net	129,897	54,916
Goodwill	385,646	28,515
Intangible assets with finite lives, net	174,224	15,126
Other assets	3,886	541
Total assets	892,924	376,872
Current liabilities:
Trade accounts payable	21,799	12,395
Accrued expenses	18,122	10,660
Accrued compensation and other benefits	5,614	4,770
Customer deposits and other deferred revenue	500	72
Dividends payable	0	7,856
Income taxes payable	1,418	0
Current portion of long-term debt	35,000	0
Total current liabilities	82,453	35,753
Long-term debt	315,000	0
Line of credit - long term	50,000	0
Deferred income taxes	83,445	5,884
Other long-term obligations	5,806	3,877
Total liabilities	536,704	45,514
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 60,000,000 shares; 30,488,659 shares issued and outstanding at June 30, 2014 and 30,225,763 shares issued and outstanding at December 31, 2013	2,033	2,016
Additional paid-in capital	83,934	77,517
Retained earnings	270,253	251,627
Accumulated other comprehensive income	0	198
Total stockholders' equity	356,220	331,358
Total liabilities and stockholders' equity	$ 892,924	$ 376,872