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Income Taxes - Schedule of Effective Income Tax Rate Computed Using Income before Income Taxes and Applying U.S. Federal Income Tax Rate (Details)

12 Months Ended

Dec. 31, 2016

Dec. 31, 2015

Dec. 31, 2014

Income tax provision

Statutory U.S. federal tax rate

35.00%

35.00%

35.00%

State income taxes, net of federal benefit

2.90%

2.60%

2.30%

Effect of foreign operations

^[1]

(4.60%)

(3.50%)

(5.30%)

Equity Compensation

(0.40%)

0.80%

2.50%

Effect of changes in tax law, rates

^[2]

(0.30%)

(0.80%)

(0.00%)

Other

0.00%

(0.50%)

0.30%

Effective tax rate (controlling interest)

32.60%

33.60%

34.80%

Parent

Income tax provision

Effective tax rate (controlling interest)

^[3]

32.60%

33.60%

34.80%

Effective tax rate

24.20%

24.40%

25.20%

Non-Controlling Interests

Income tax provision

Effect of income from non-controlling interests

(8.40%)

(9.20%)

(9.60%)

[1]	Effect of foreign operations includes the effect of undistributed foreign earnings the Company deems indefinitely reinvested in foreign operations, and the effect of differences in the financial reporting basis over tax basis in the Company’s investments in foreign subsidiaries considered permanent in duration.
[2]	Effect of changes in tax law, rates reflects the impact of the reduction in the UK tax rates in years 2015 and 2016.
[3]	Taxes attributable to the controlling interest divided by Income before income taxes (controlling interest).

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- Definition

A ratio calculated by dividing the amount of income tax expense attributable to the controlling interest by pretax income from continuing operations attributable to the controlling interest.

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

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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 equity-based compensation costs.

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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 attributable to the repatriation of foreign earnings.

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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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