The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of the country of domicile in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of a country outside the country of domicile in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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- Definition

The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of a state or local jurisdiction in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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- Definition

The tax effect as of the balance sheet date of the amount of future tax deductions arising from unused alternative minimum tax credit carryforwards; a tax credit carryforward is the amount by which tax credits available for utilization exceeded statutory limits on inclusion in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization.

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- Definition

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee compensation costs, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

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- Definition

The sum of the portions of deferred tax assets as of the balance sheet date for which, based on the weight of available evidence, it is more likely than not will not be realized through future reductions of tax-based income.

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- Definition

Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

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- Definition

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.

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Note 5. Income Taxes (Detail) (USD $)	3 Months Ended	12 Months Ended
Note 5. Income Taxes (Detail) (USD $)	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Deferred Tax Assets, Valuation Allowance	$ 19,073,000	$ 22,895,000	$ 19,073,000	$ 104,429,000	$ 138,848,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	88,000,000	71,000,000	77,000,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		137,000,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local		54,000,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign		68,000,000
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax		15,000,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	19,000,000	20,000,000	19,000,000
Income Taxes Receivable		8,000,000
Foreign Jurisdictions And Foreign Tax Credits [Member]
Valuation Allowance, Deferred Tax Asset, Change in Amount		$ 3,700,000