Income Taxes	9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three months ended September 30, 2016 and 2015, our income tax provision from continuing operations was $30.8 million and $25.7 million, respectively, based on effective income tax rates, before discrete items and less amounts attributable to noncontrolling interests, of 38.1% and 38.0%, respectively. The actual income tax rates on income from continuing operations, less amounts attributable to noncontrolling interests, for the three months ended September 30, 2016 and 2015, inclusive of discrete items, were 37.2% and 38.1%, respectively. For the nine months ended September 30, 2016 and 2015, our income tax provision from continuing operations was $82.7 million and $74.7 million, respectively, based on effective income tax rates, before discrete items and less amounts attributable to noncontrolling interests, of 37.8% and 37.9%, respectively. The actual income tax rates on income from continuing operations, less amounts attributable to noncontrolling interests, for the nine months ended September 30, 2016 and 2015, inclusive of discrete items, were 36.7% and 38.0%, respectively. The increase in the 2016 income tax provision was primarily due to increased income from continuing operations. The decrease in the actual income tax rate on income from continuing operations for the three months ended September 30, 2016 was primarily due to the reversal of $0.8 million of reserves for uncertain income tax positions. The decrease in the actual income tax rate for the nine months ended September 30, 2016 was primarily due to $2.1 million of tax benefits recognized upon the issuance of common stock under share-based compensation plans. As of September 30, 2016 and December 31, 2015, the amount of unrecognized income tax benefits was $3.9 million and $4.8 million (of which $2.2 million and $3.0 million, if recognized, would favorably affect our effective income tax rate), respectively. We report interest expense related to unrecognized income tax benefits in the income tax provision. As of September 30, 2016 and December 31, 2015, we had approximately $0.4 million of accrued interest related to unrecognized income tax benefits included as a liability in the Condensed Consolidated Balance Sheets. For each of the three and nine months ended September 30, 2016, less than $0.1 million of interest income was recognized. For each of the three and nine months ended September 30, 2015, less than $0.1 million of interest expense was recognized. It is reasonably possible that approximately $3.3 million of unrecognized income tax benefits at September 30, 2016, primarily relating to uncertain tax positions attributable to tax return filing positions, will significantly decrease in the next twelve months as a result of estimated settlements with taxing authorities and the expiration of applicable statutes of limitations. We file income tax returns with the Internal Revenue Service and various state, local and foreign tax agencies. The Company is currently under examination by various taxing authorities for the years 2008 through 2014.

Income Taxes

For the three months ended September 30, 2016 and 2015, our income tax provision from continuing operations was $30.8 million and $25.7 million, respectively, based on effective income tax rates, before discrete items and less amounts attributable to noncontrolling interests, of 38.1% and 38.0%, respectively. The actual income tax rates on income from continuing operations, less amounts attributable to noncontrolling interests, for the three months ended September 30, 2016 and 2015, inclusive of discrete items, were 37.2% and 38.1%, respectively. For the nine months ended September 30, 2016 and 2015, our income tax provision from continuing operations was $82.7 million and $74.7 million, respectively, based on effective income tax rates, before discrete items and less amounts attributable to noncontrolling interests, of 37.8% and 37.9%, respectively. The actual income tax rates on income from continuing operations, less amounts attributable to noncontrolling interests, for the nine months ended September 30, 2016 and 2015, inclusive of discrete items, were 36.7% and 38.0%, respectively. The increase in the 2016 income tax provision was primarily due to increased income from continuing operations. The decrease in the actual income tax rate on income from continuing operations for the three months ended September 30, 2016 was primarily due to the reversal of $0.8 million of reserves for uncertain income tax positions. The decrease in the actual income tax rate for the nine months ended September 30, 2016 was primarily due to $2.1 million of tax benefits recognized upon the issuance of common stock under share-based compensation plans.

As of September 30, 2016 and December 31, 2015, the amount of unrecognized income tax benefits was $3.9 million and $4.8 million (of which $2.2 million and $3.0 million, if recognized, would favorably affect our effective income tax rate), respectively.

We report interest expense related to unrecognized income tax benefits in the income tax provision. As of September 30, 2016 and December 31, 2015, we had approximately $0.4 million of accrued interest related to unrecognized income tax benefits included as a liability in the Condensed Consolidated Balance Sheets. For each of the three and nine months ended September 30, 2016, less than $0.1 million of interest income was recognized. For each of the three and nine months ended September 30, 2015, less than $0.1 million of interest expense was recognized.

It is reasonably possible that approximately $3.3 million of unrecognized income tax benefits at September 30, 2016, primarily relating to uncertain tax positions attributable to tax return filing positions, will significantly decrease in the next twelve months as a result of estimated settlements with taxing authorities and the expiration of applicable statutes of limitations.

We file income tax returns with the Internal Revenue Service and various state, local and foreign tax agencies. The Company is currently under examination by various taxing authorities for the years 2008 through 2014.