Business Segments and Major Customers (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2011	Sep. 30, 2012	Sep. 30, 2011
Financial information of business segments
Revenues	$ 57,530	$ 100,263		$ 176,608	$ 229,004
Gain from settlement	0	0	6,200	0	6,200
Segment direct operating income (loss)	39,109	82,596		112,761	186,149
Operating income (loss)	(47,100)	10,736		(86,407)	16,598
Interest and other expense, net	(7,133)	(6,178)		(20,245)	(17,991)
Loss before income taxes	(54,233)	4,558		(106,652)	(1,393)
Semiconductor Business Group (SBG)
Financial information of business segments
Revenues	54,043	84,628		163,269	212,779
Gain from settlement		0			6,200
Segment direct operating income (loss)	44,180	74,105		126,848	185,476
All Other
Financial information of business segments
Revenues	3,487	15,635		13,339	16,225
Segment direct operating income (loss)	(5,071)	8,491		(14,087)	673
Reconciling Items
Financial information of business segments
Operating income (loss)	$ (86,209)	$ (71,860)		$ (199,168)	$ (169,551)

Total operating income loss for reporting segments.

No definition available.

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- Definition

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.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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The net amount of operating interest income (expense).

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-Publisher FASB

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-SubTopic 225

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The net result for the period of deducting operating expenses from operating revenues.

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- Definition

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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-Publisher FASB

-Name Accounting Standards Codification

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-Paragraph 2

-Subparagraph (SX 210.5-03.1)

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