Income Taxes	3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate was 34.7% for the three months ended March 31, 2017, compared to 36.8% in the same quarter of 2016. The change in rate resulted from a higher percentage of the company's pretax income earned in lower tax rate jurisdictions compared to prior year. The liability for unrecognized tax benefits was $11.0 million at March 31, 2017 and $10.7 million at December 31, 2016. Included in the liability at March 31, 2017 were $4.9 million of tax positions for which ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility.

Income Taxes

3 Months Ended

Mar. 31, 2017

The effective tax rate was 34.7% for the three months ended March 31, 2017, compared to 36.8% in the same quarter of 2016. The change in rate resulted from a higher percentage of the company's pretax income earned in lower tax rate jurisdictions compared to prior year. The liability for unrecognized tax benefits was $11.0 million at March 31, 2017 and $10.7 million at December 31, 2016. Included in the liability at March 31, 2017 were $4.9 million of tax positions for which ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility.