CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 9,115	$ 9,719
Trade receivables — net of allowance for uncollectible accounts — 2013 — $779 and 2012 — $892	57,279	53,402
Employee receivables	249	169
Other receivables	2,502	2,672
Inventories	81,057	84,599
Prepaid expenses	4,922	4,133
Prepaid income taxes	1,266	1,250
Deferred income tax assets	4,989	4,976
Income tax refund receivable	1,102	1,076
Total current assets	162,481	161,996
PROPERTY AND EQUIPMENT:
Land and land improvements	17,989	17,346
Buildings	126,340	81,223
Manufacturing equipment	136,013	117,601
Furniture and fixtures	32,154	26,307
Leasehold improvements	14,184	13,236
Construction-in-progress	43,276	74,643
Total property and equipment	369,956	330,356
Less accumulated depreciation	(107,993)	(95,553)
Property and equipment — net	261,963	234,803
OTHER ASSETS:
Goodwill	175,489	175,108
Deferred income tax assets	4,237	4,237
Other assets	12,208	11,034
Total other assets	293,739	308,510
TOTAL	718,183	705,309
CURRENT LIABILITIES:
Trade payables	23,637	34,637
Accrued expenses	27,308	27,269
Current portion of long-term debt	10,000	10,000
Advances from employees	729	551
Income taxes payable	1,871	547
Total current liabilities	63,545	73,004
LONG-TERM DEBT	241,157	227,566
DEFERRED INCOME TAX LIABILITIES	2,436	2,373
LIABILITIES RELATED TO UNRECOGNIZED TAX BENEFITS	2,035	2,938
DEFERRED COMPENSATION PAYABLE	6,821	5,956
DEFERRED CREDITS	3,107	2,980
OTHER LONG-TERM OBLIGATIONS	3,456	8,915
Total liabilities	322,557	323,732
Commitments and Contingencies
STOCKHOLDERS’ EQUITY:
Preferred stock — 5,000 shares authorized as of September 30, 2013 and December 31, 2012; no shares issued	0	0
Common stock — no par value; 100,000 shares authorized; 42,612 and 42,489 shares issued at September 30, 2013 and December 31, 2012, respectively	174,551	172,341
Retained earnings	220,448	210,418
Accumulated other comprehensive income (loss)	627	(1,182)
Total stockholders’ equity	395,626	381,577
TOTAL	718,183	705,309
Developed Technology Rights [Member]
OTHER ASSETS:
Intangible Assets	73,887	87,332
Other Intangible Assets [Member]
OTHER ASSETS:
Intangible Assets	$ 27,918	$ 30,799