v2.4.0.8

Summary of Tax Positions (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Before Provision for Taxes | $ 1,584,913 | $ 518,392 | $ 566,674 | $ 478,582 | $ 187,167 | $ 235,739 | $ 135,614 | $ 456,385 | $ 3,148,561 |  | $ 1,014,905 |  | $ 77,258 |
Total Provision for Taxes |  |  |  |  |  |  |  |  | $ 255,642 |  | $ 185,023 |  | $ 345,711 |
Effective Income Tax Rate |  |  |  |  |  |  |  |  | 8.10% | [1] | 18.20% | [1] | 447.50% | [1]
[1] | The effective tax rate is calculated on Income (Loss) Before Provision for Taxes.

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