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Income Taxes Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Expected federal statutory income tax rate	35.00%	35.00%	35.00%
Increase/(decrease)
State and local income taxes, net of federal benefit	1.80%	1.10%	2.20%
Other	0.90%	1.30%	(1.00%)
Effective tax rate (excluding noncontrolling interests)	37.70%	37.40%	36.20%
Income attributable to noncontrolling interests	(0.30%)	0.00%	(0.40%)
Effective tax rate per Consolidated Statements of Income	37.40%	37.40%	35.80%

X

- Definition

The ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pre-tax income from continuing operations excluding non-controlling interests.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 noncontrolling interest income (loss) exempt from income taxes.

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Percentage 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 other adjustments.

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Percentage 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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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