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Business Segments and Major Customers (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Business Segments and Major Customers
Number of business groups					2
Financial information of business segments
Revenues	$ 66,214	$ 38,862	$ 128,741	$ 200,726
Gain from settlement		10,300	6,200	106,200	126,800
SBG operating income	52,660	38,414	108,134	285,676
Operating income (loss)	(2,508)	(6,673)	5,862	195,493
Interest and other expense, net	(5,989)	(3,424)	(11,813)	(9,015)
Income (loss) before income taxes	(8,497)	(10,097)	(5,951)	186,478
Property, plant and equipment, net	71,187		71,187		67,770
Number of major customers	3	3	3	1
Semiconductor Business Group ("SBG")
Financial information of business segments
Revenues	65,775	38,675	128,151	200,539
Gain from settlement		10,300	6,200	106,200
SBG operating income	56,462	40,077	114,957	288,259
Operating income (loss)	56,462	40,077	114,957	288,259
New Business Group ("NBG")
Financial information of business segments
Revenues	439	187	590	187
SBG operating income	(3,802)	(1,663)	(6,823)	(2,583)
Operating income (loss)	(3,802)	(1,663)	(6,823)	(2,583)
Reconciling items
Financial information of business segments
Operating income (loss)	(55,168)	(45,087)	(102,272)	(90,183)
Unallocated amounts: Corporate expenses
Financial information of business segments
Operating income (loss)	(30,868)	(27,754)	(60,582)	(54,406)
Unallocated amounts: Unallocated expenses
Financial information of business segments
Operating income (loss)	(24,300)	(17,333)	(41,690)	(35,777)
Customer 1
Financial information of business segments
Revenue of major customer as a percentage of total revenue (as a percent)	38.00%	38.00%	34.00%	76.00%
Customer 2
Financial information of business segments
Revenue of major customer as a percentage of total revenue (as a percent)	13.00%	17.00%	13.00%
Customer 3
Financial information of business segments
Revenue of major customer as a percentage of total revenue (as a percent)	12.00%	10.00%	12.00%
Japan
Financial information of business segments
Revenues	26,649	18,837	56,250	37,873
Korea
Financial information of business segments
Revenues	25,074	14,713	44,218	151,879
North America
Financial information of business segments
Revenues	14,469	5,292	28,096	10,777
Asia-Other
Financial information of business segments
Revenues	15	13	163	58
Europe
Financial information of business segments
Revenues	7	7	14	139
United States
Financial information of business segments
Property, plant and equipment, net	70,300		70,300		66,700
India
Financial information of business segments
Property, plant and equipment, net	800		800		1,000
Other foreign locations
Financial information of business segments
Property, plant and equipment, net	$ 100		$ 100		$ 100

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Number of customers with revenues in excess of 10% of total revenues for respective reporting period.

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Total operating income loss for reporting segments.

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The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims.

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Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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