Additional Benefit Plans Textual Abstract.

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Average service period.

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Benefit Plans.

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Closing Price of share on Last trading day of Fiscal Year.

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Decrease Plan reserve for every unit.

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Exercise price of Restricted stock units.

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Fair value of restricted stocks.

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Fair value of stock options and restricted stock units issued to employees.

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Increased number of shares reserved for every unit forfeited.

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Increase in number of shares authorized.

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Increase plan reserve for every unit.

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Maximum Exercise Price as Percentage to Fair Value.

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Number of restricted stock units granted during the period.

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Number of shares to purchase under restricted stock units.

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Reduced the number of shares reserved for every unit granted.

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Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Life.

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Share Based Payment Award Options For Issuance Exercises In Period Weighted Average Exercise Price.

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Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Life.

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Share based compensation arrangement with payment awards.

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Share based compensation arrangement by share based payment award shares reserved for issuance.

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Share based compensation arrangement by share based payment award vesting periods.

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Share Based Compensation Arrangement By Share Based Payment Options Exercisable Intrinsic Value.

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Share based compensation arrangements by share based payment award options vested and expected to vest outstanding weighted average remaining contractual term.

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Stock options to purchase.

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General information regarding defined benefit plans. A defined benefit pension plan is a plan that defines an amount of pension benefit to be provided, usually as a function of one or more factors such as age, years of service, or compensation. An other postretirement defined benefit plan is an arrangement that is mutually understood by an employer and its employees, whereby an employer undertakes to provide its employees with benefits other than pensions, after they retire in exchange for their services over a specified period of time, upon attaining a specified age while in service, or a combination of both. Any plan that is not a defined contribution plan is a defined benefit plan. General descriptive information about the employer's defined benefit plans, including employee groups covered, type of benefit formula, type of benefits, cost sharing arrangements, funding policy, types of assets held, and significant nonbenefit liabilities, if any. Also includes information pertaining to multiple employer plans, which are accounted for as single-employer plans.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 158

-Paragraph 7

-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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

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-Name Statement of Financial Accounting Standard (FAS)

-Number 106

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Defined Benefit Pension Plan

-SubTopic 30

-Topic 715

-URI http://asc.fasb.org/extlink&oid=6510300

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-Name Statement of Financial Accounting Standard (FAS)

-Number 87

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-Number 132R

-Paragraph 5

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Glossary Defined Benefit Postretirement Plan

-SubTopic 60

-Topic 715

-URI http://asc.fasb.org/extlink&oid=6749240

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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Net number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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As of the balance sheet date, the total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options outstanding.

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The number of shares newly issued during the reporting period under the plan.

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-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Number 123R

-Paragraph A240

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Benefit Plans (Details Textual) (USD $)	9 Months Ended
Benefit Plans (Details Textual) (USD $)	Sep. 30, 2011 Year	Oct. 01, 2010	Dec. 31, 2010
Benefit Plans (Textual) [Abstract]
Weighted-average fair value of option granted	$ 4.34	$ 4.18
Stocks available for grants	8,299,000		10,449,000
Fair value of restricted stocks		$ 10,300,000
Fair value of stock options and restricted stock units issued to employees	17,300,000
Units granted to non employee directors	(913,000)
Grant date fair value of restricted stock	7,800,000
Additional Benefit Plans (Textual) [Abstract]
Exercise price of Restricted stock units	0
Weighted-average remaining contractual life for all exercisable stock options	3 years
Weighted-average remaining contractual life of all vested and expected-to-vest stock options	3 years 8 months
Aggregate intrinsic value of options exercisable	1,300,000
Aggregate intrinsic value of stock options vested and expected-to-vest net of estimated forfeitures	2,200,000
Closing price of share on last trading day of fiscal year	$ 4.26
Aggregate intrinsic value of exercised options	5,100,000
Retirement/Saving Plan Description	Plan allows participants to contribute up to 20% of total compensation, subject to applicable Internal Revenue Service limitations. Employer can make discretionary contributions to the plan of 25% of the first 4% contributed by eligible participants up, to a maximum contribution per participant of $1,000 per year
Total unamortized stock-based compensation cost related to unvested stock options and restricted stock units	34,800,000
Remaining weighted-average amortization period	2.5
Stock options to purchase	1,522,000
Number of shares to purchase under restricted stock units	1,455,000
Average service period	2 years 6 months
Stock Plan 1995 [Member]
Benefit Plans (Textual) [Abstract]
Decrease Plan reserve for every unit	1.5 shares for every unit or share granted
Increase Plan Reserve For Every Unit	1.5 shares for every unit or share forfeited
Stock Plan 1995 [Member] \| Stock Based Incentive Plans [Member]
Benefit Plans (Textual) [Abstract]
Common stock reserved for issuance under Stock based incentive plans	18,932,442
Stocks available for grants	8,135,756
Stock Options [Member]
Benefit Plans (Textual) [Abstract]
Stocks available for grants	380,000
Stock Options [Member] \| Stock Based Incentive Plans [Member]
Benefit Plans (Textual) [Abstract]
Stocks available for grants	7,076,428
Restricted Stock [Member]
Benefit Plans (Textual) [Abstract]
Stocks available for grants	75,845
Rights for vesting of the shares under option on each anniversary of the grant date	25% vesting at one year from date of grant or the vesting commencement date chosen for the award, and either an additional 1/16 per quarter thereafter, or 1/8 semiannually thereafter
Restricted stock vesting period	4 years
Maximum Exercise price as percentage to fair value	100.00%
Restricted stock units granted	1,856,000	1,637,000
Fair value of restricted stocks	16,800,000
Weighted-average remaining contractual life of all vested and expected-to-vest restricted stock units	1 year 3 months
Restricted Stock [Member] \| Stock Based Incentive Plans [Member]
Benefit Plans (Textual) [Abstract]
Stocks available for grants	3,720,258
Director Option Plans 2002 [Member]
Benefit Plans (Textual) [Abstract]
Common Stock reserve for issuance	0
Increased number of shares reserved for every unit forfeited	1.5
Reduced the number of shares reserved for every unit granted	1.5
Units granted to non employee directors	75,845	87,367
Grant date fair value of restricted stock	700,000	500,000
Director Option Plans 2002 [Member] \| Stock Based Incentive Plans [Member]
Benefit Plans (Textual) [Abstract]
Common stock reserved for issuance under Stock based incentive plans	619,162
Stocks available for grants	163,317
Employee Stock Purchase Plan Awards [Member]
Benefit Plans (Textual) [Abstract]
Increase in number of shares authorized	2,000,000
Employee Stock Purchase Plan Awards [Member] \| Stock Based Incentive Plans [Member]
Benefit Plans (Textual) [Abstract]
Common stock reserved for issuance under Stock based incentive plans	2,829,786
The Inactive Plan [Member]
Benefit Plans (Textual) [Abstract]
Stocks available for grants	1,603,915
The Inactive Plan [Member] \| Stock Based Incentive Plans [Member]
Benefit Plans (Textual) [Abstract]
Common stock reserved for issuance under Stock based incentive plans	1,864,091
Inactive Stock Based Incentive Plan [Member]
Benefit Plans (Textual) [Abstract]
Stocks available for grants	260,176
Employee Stock Option [Member]
Benefit Plans (Textual) [Abstract]
Maximum term of stock options granted	7 years
Rights for vesting of the shares under option on each anniversary of the grant date	25% at one year from date of grant, and an additional 1/48 per month thereafter
Stock Plan 2002 [Member]
Benefit Plans (Textual) [Abstract]
Maximum Exercise price as percentage to fair value	85.00%
Common Stock for issuance under various employee stock option plans	945,287	864,800
Common Stock for issuance weighted average price	$ 5.54	$ 4.90
Weighted-average fair value of option granted	$ 2.02	$ 1.70
Purchase Consideration [Member]
Benefit Plans (Textual) [Abstract]
Fair value of stock options and restricted stock units issued to employees	2,100,000
Compensation Expense [Member]
Benefit Plans (Textual) [Abstract]
Fair value of stock options and restricted stock units issued to employees	$ 15,200,000