CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 6,438	$ 7,459
Trade receivables — net of allowance for uncollectible accounts — 2014 — $920 and 2013 — $840	69,387	60,186
Employee receivables	181	224
Other receivables	4,221	3,279
Inventories	92,931	82,378
Prepaid expenses	5,687	5,121
Prepaid income taxes	1,199	1,232
Deferred income tax assets	5,626	5,638
Income tax refund receivables	315	398
Total current assets	185,985	165,915
PROPERTY AND EQUIPMENT:
Land and land improvements	16,948	16,240
Buildings	132,282	127,747
Manufacturing equipment	144,435	136,768
Furniture and fixtures	36,566	32,327
Leasehold improvements	15,159	13,692
Construction-in-progress	23,371	25,172
Total property and equipment	368,761	351,946
Less accumulated depreciation	(121,106)	(108,676)
Property and equipment — net	247,655	243,270
OTHER ASSETS:
Goodwill	184,505	184,505
Deferred income tax assets	799	800
Other assets	16,328	13,806
Total other assets	312,869	319,098
TOTAL	746,509	728,283
CURRENT LIABILITIES:
Trade payables	26,709	26,511
Accrued expenses	32,692	27,702
Current portion of long-term debt	10,000	10,000
Advances from employees	894	292
Income taxes payable	3,805	1,089
Total current liabilities	74,100	65,594
LONG-TERM DEBT	230,484	238,854
DEFERRED INCOME TAX LIABILITIES	2,335	2,548
LIABILITIES RELATED TO UNRECOGNIZED TAX BENEFITS	1,187	2,031
DEFERRED COMPENSATION PAYABLE	8,477	7,833
DEFERRED CREDITS	2,934	3,065
OTHER LONG-TERM OBLIGATIONS	2,741	2,652
Total liabilities	322,258	322,577
COMMITMENTS AND CONTINGENCIES (Notes 5, 9, 10 and 13)
STOCKHOLDERS’ EQUITY:
Preferred stock — 5,000 shares authorized as of September 30, 2014 and December 31, 2013; no shares issued	0	0
Common stock, no par value; 100,000 shares authorized; 43,239 and 42,846 shares issued at September 30, 2014 and December 31, 2013, respectively	182,614	177,775
Retained earnings	241,291	226,988
Accumulated other comprehensive income	346	943
Total stockholders’ equity	424,251	405,706
TOTAL	746,509	728,283
Developed technology — net of accumulated amortization — 2014 — $25,409 and 2013 — $17,602
OTHER ASSETS:
Intangible Assets	81,892	91,052
Other — net of accumulated amortization — 2014 — $21,361 and 2013 — $18,870
OTHER ASSETS:
Intangible Assets	$ 29,345	$ 28,935