Note 18 - Incentive Plans (Detail) (USD $)	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011
Number of Equity Participation Plans	2
Share-based Compensation (in Dollars)	$ 11,700,000	$ 9,600,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars)	38,300,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	4 years
Stock Repurchased During Period, Shares (in Shares)	1,500,000
Stock Repurchased During Period, Value (in Dollars)	28,958,000	1,415,000
Proceeds from Stock Options Exercised (in Dollars)	7,200,000
Severance Costs (in Dollars)	3,800,000
The Prior Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	47,000,000
The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	10,000,000
Stock Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Stock Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date	Dec. 31, 2008
Restricted Stock [Member] \| i [Member]
Share Based Compensation, Arrangement by Share Based Payment Award, Percent Vested	100.00%
Restricted Stock [Member] \| ii [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Restricted Stock [Member] \| ii [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Restricted Stock [Member] \| iii [Member] \| First Half [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share Based Compensation, Arrangement by Share Based Payment Award, Percent Vested	50.00%
Restricted Stock [Member] \| iii [Member] \| Second Half [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	2 years
Share Based Compensation, Arrangement by Share Based Payment Award, Percent Vested	50.00%
Restricted Stock [Member] \| iv [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	10 years
Restricted Stock [Member] \| iv [Member]
Share Based Compensation, Arrangement by Share Based Payment Award, Percent Vested	20.00%
Executive Officer [Member]
Severance Costs (in Dollars)	$ 2,500,000

No authoritative reference available.

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No authoritative reference available.

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- Definition

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.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Date the equity-based award expires, in CCYY-MM-DD format.

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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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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

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