v2.4.0.6

STOCK-BASED COMPENSATION (Details) (USD $) | 12 Months Ended | 1 Months Ended |
--- | --- | --- | ---
Dec. 31, 2011 year plan | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2011 Stock Options year | Dec. 31, 2010 Stock Options year | Dec. 31, 2009 Stock Options year | Dec. 31, 2011 RSUs | Dec. 31, 2011 PSUs | Aug. 31, 2008 2005 Plan Numerator Denominator | Dec. 31, 2011 2005 Plan | Dec. 31, 2011 2008 Plan
Stock-based compensation |  |  |  |  |  |  |  |  |  |  |
Number of active plans | 2 |  |  |  |  |  |  |  |  |  |
Originally authorized amount (in shares) |  |  |  |  |  |  |  |  |  | 20,000,000 | 20,000,000
Reverse stock split, numerator |  |  |  |  |  |  |  |  | 1 |  |
Reverse stock split, denominator |  |  |  |  |  |  |  |  | 2 |  |
Shares available for grant | 9,200,000 |  |  |  |  |  |  |  |  |  |
Stated term (in years) | ten years |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  |  | 4 years |  |  | 5 years |  |  |  |
Vesting period, low end of range (in years) |  |  |  |  |  |  |  | two-years |  |  |
Vesting period, high end of range (in years) |  |  |  |  |  |  |  | three-years |  |  |
Tax benefit recognized related to stock-based compensation | $ 32,700,000 | $ 32,200,000 | $ 26,800,000 |  |  |  |  |  |  |  |
Unrecognized compensation cost, net of estimated forfeitures | 107,800,000 |  |  |  |  |  |  |  |  |  |
Weighted average period over which cost is expected to be recognized (in years) | 2.1 |  |  |  |  |  |  |  |  |  |
Shares |  |  |  |  |  |  |  |  |  |  |
Outstanding at the beginning of the year (in shares) |  |  |  | 13,418,000 |  |  |  |  |  |  |
Granted (in shares) |  |  |  | 2,563,000 | 2,400,000 | 900,000 |  |  |  |  |
Exercised (in shares) |  |  |  | (4,733,000) |  |  |  |  |  |  |
Forfeited (in shares) |  |  |  | (683,000) |  |  |  |  |  |  |
Expired (in shares) |  |  |  | (40,000) |  |  |  |  |  |  |
Outstanding at the end of the year (in shares) |  |  |  | 10,525,000 | 13,418,000 |  |  |  |  |  |
Options Exercisable (in shares) |  |  |  | 3,871,000 |  |  |  |  |  |  |
Weighted Average Exercise Price |  |  |  |  |  |  |  |  |  |  |
Outstanding at the beginning of the year (in dollars per share) |  |  |  | $ 22.06 |  |  |  |  |  |  |
Granted (in dollars per share) |  |  |  | $ 32.37 |  |  |  |  |  |  |
Exercised (in dollars per share) |  |  |  | $ 22.03 |  |  |  |  |  |  |
Forfeited (in dollars per share) |  |  |  | $ 17.66 |  |  |  |  |  |  |
Expired (in dollars per share) |  |  |  | $ 19.79 |  |  |  |  |  |  |
Outstanding at the end of the year (in dollars per share) |  |  |  | $ 24.88 | $ 22.06 |  |  |  |  |  |
Options exercisable (in dollars per share) |  |  |  | $ 23.30 |  |  |  |  |  |  |
Weighted Average Remaining Contractual Term |  |  |  |  |  |  |  |  |  |  |
Outstanding (in years) |  |  |  | 7.1 |  |  |  |  |  |  |
Options exercisable (in years) |  |  |  | 5.2 |  |  |  |  |  |  |
Aggregate Intrinsic Value |  |  |  |  |  |  |  |  |  |  |
Outstanding |  |  |  | 186,474,000 |  |  |  |  |  |  |
Options exercisable |  |  |  | 74,704,000 |  |  |  |  |  |  |
Weighted average assumptions used in Black-Scholes option pricing model |  |  |  |  |  |  |  |  |  |  |
Expected volatility (as a percent) |  |  |  | 30.00% | 30.00% | 59.00% |  |  |  |  |
Risk-free interest rate (as a percent) |  |  |  | 2.30% | 2.40% | 2.10% |  |  |  |  |
Expected term (in years) |  |  |  | 6.1 | 5.6 | 4.9 |  |  |  |  |
Dividend yield |  |  |  | 0.00% | 0.00% | 0.00% |  |  |  |  |
Additional disclosures |  |  |  |  |  |  |  |  |  |  |
Weighted average fair value of stock options granted with exercise price equal to market price of common stock (in dollars per share) |  |  |  | $ 11.08 | $ 6.38 | $ 8.95 |  |  |  |  |
Weighted exercise price value of stock options granted with exercise price greater than market price of common stock (in dollars per share) |  |  |  |  | $ 32.00 |  |  |  |  |  |
Weighted average fair value of stock options granted with exercise price greater than market price of common stock (in dollars per share) |  |  |  |  | $ 11.05 |  |  |  |  |  |
Intrinsic value of stock options exercised |  |  |  | 70,600,000 | 16,400,000 | 2,800,000 |  |  |  |  |
Cash received from stock option exercises |  |  |  | 89,800,000 | 39,100,000 | 3,800,000 |  |  |  |  |
Tax benefit realized from stock option exercises |  |  |  | $ 25,500,000 | $ 8,600,000 | $ 800,000 |  |  |  |  |

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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph h -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(c) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.D.2) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(a) -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section D -Subsection 2 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(b) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(d) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c), d(2) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(2) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(e) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that lapsed during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(g) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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