CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 12,102	$ 7,355
Trade receivables — net of allowance for uncollectible accounts — 2015 — $1,169 and 2014 — $893	67,397	72,717
Employee receivables	147	173
Other receivables	6,470	7,507
Inventories	92,721	91,773
Prepaid expenses	5,637	5,012
Prepaid income taxes	1,237	1,273
Deferred income tax assets	6,375	6,375
Income tax refund receivables	271	155
Total current assets	192,357	192,340
PROPERTY AND EQUIPMENT:
Land and land improvements	16,798	16,830
Buildings	133,685	130,447
Manufacturing equipment	151,363	145,022
Furniture and fixtures	37,056	35,201
Leasehold improvements	16,568	16,096
Construction-in-progress	30,458	21,858
Total property and equipment	385,928	365,454
Less accumulated depreciation	(131,524)	(121,283)
Property and equipment — net	254,404	244,171
OTHER ASSETS:
Goodwill	184,423	184,464
Deferred income tax assets	9	9
Other assets	17,693	15,873
Total other assets	308,361	310,654
TOTAL	755,122	747,165
CURRENT LIABILITIES:
Trade payables	27,793	29,810
Accrued expenses	37,933	33,826
Current portion of long-term debt	10,000	10,000
Advances from employees	642	381
Income taxes payable	2,978	1,413
Total current liabilities	79,346	75,430
LONG-TERM DEBT	199,774	214,490
DEFERRED INCOME TAX LIABILITIES	6,177	6,385
LIABILITIES RELATED TO UNRECOGNIZED TAX BENEFITS	1,353	1,353
DEFERRED COMPENSATION PAYABLE	9,458	8,635
DEFERRED CREDITS	2,806	2,891
OTHER LONG-TERM OBLIGATIONS	3,410	2,722
Total liabilities	$ 302,324	$ 311,906
COMMITMENTS AND CONTINGENCIES (Notes 5, 9, 10 and 13)
STOCKHOLDERS’ EQUITY:
Preferred stock — 5,000 shares authorized as of June 30, 2015 and December 31, 2014; no shares issued	$ 0	$ 0
Common stock, no par value; 100,000 shares authorized; 44,117 and 43,614 issued and outstanding as of June 30, 2015 and December 31, 2014, respectively	194,698	187,709
Retained earnings	262,537	249,962
Accumulated other comprehensive loss	(4,437)	(2,412)
Total stockholders’ equity	452,798	435,259
TOTAL	755,122	747,165
Developed technology — net of accumulated amortization — 2015 — $33,156 and 2014 — $27,982
OTHER ASSETS:
Intangible Assets	73,679	79,172
Other — net of accumulated amortization — 2015 — $24,493 and 2014 — $22,480
OTHER ASSETS:
Intangible Assets	$ 32,557	$ 31,136