INCOME TAXES (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Doubtful accounts	$ 1,829	$ 1,822
Inventory write-downs	26,549	24,695
Tax credits	3,275	2,865
Accrued vacation	2,335	2,163
Accrued bonus	4,111	2,330
Other	4,095	3,132
Total current deferred tax assets	42,194	37,007
Less valuation allowance	(2,922)	(702)
Current deferred tax assets after valuation allowance	39,272	36,305
Current liabilities:
Other	(314)	(179)
Total current deferred tax liabilities	(314)	(179)
Net current deferred tax assets	38,958	36,126
Non-current assets:
Benefit and compensation	(500)	8,991
Stock compensation	12,730	28,659
Deferred revenue	162	148
Net operating loss carryforwards	36,037	48,251
Financing costs	0	1,472
Federal & state tax credits	19,851	1,333
Other	0
Total non-current deferred tax assets	68,280	88,854
Less valuation allowance	(11,321)	(31,602)
Non-current deferred tax assets after valuation allowance	56,959	57,252
Non-current liabilities:
Intangible & fixed assets	(46,650)	(43,152)
Deferred gain	0	(548)
Non-cash interest amortization	0	(1,847)
Other	359	(191)
Total non current deferred tax liabilities	(46,291)	(45,738)
Net non-current deferred tax assets	10,668	11,514
Total net deferred tax assets	$ 49,626	$ 47,640