Income Taxes (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Jun. 30, 2016 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Dec. 31, 2015 |
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| Income Tax Disclosure [Abstract] | ||||||||||
| Income tax expense | $ 111,556 | $ 106,310 | $ 108,242 | $ 112,543 | $ 214,552 | $ 326,108 | $ 296,893 | |||
| Effective income tax rate (as a percent) | 36.50% | 40.30% | 37.60% | 44.20% | ||||||
| Increase in valuation allowance | $ 44,392 | |||||||||
| Increase in deferred tax asset | $ 14,831 | |||||||||
| Valuation allowance | $ 49,257 | $ 49,257 | $ 49,095 | |||||||
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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