Income Taxes	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Our effective tax rate was 32% for the nine months ended September 30, 2017, compared to 33% for the nine months ended September 30, 2016. The difference in the effective rates for the current year compared to prior year is primarily attributable to the mix of pre-tax income among domestic and foreign jurisdictions which are taxed at different rates. Additionally, during the quarter, based upon the status of our current state income tax audits and our expectations of the ultimate resolution, we released the remaining balance of our liability for unrecognized tax benefits and recognized an income tax benefit of $4.3 million ($2.8 million, net of federal tax). Also, our consolidated state income tax rate increased, effective July 1, 2017, due to legislation enacted in the state of Illinois. Accordingly, we recorded a deferred state income tax adjustment of $3.1 million in the quarter. Finally, the 2017 effective tax rate reflects incremental benefits associated with equity awards in accordance with the adoption of new accounting rules and the impact of reductions in the statutory tax rates in Quebec and Saskatchewan, Canada and India, partially offset by an increase to the effective tax rate in Germany.

Our effective tax rate was 32% for the nine months ended September 30, 2017, compared to 33% for the nine months ended September 30, 2016. The difference in the effective rates for the current year compared to prior year is primarily attributable to the mix of pre-tax income among domestic and foreign jurisdictions which are taxed at different rates. Additionally, during the quarter, based upon the status of our current state income tax audits and our expectations of the ultimate resolution, we released the remaining balance of our liability for unrecognized tax benefits and recognized an income tax benefit of $4.3 million ($2.8 million, net of federal tax). Also, our consolidated state income tax rate increased, effective July 1, 2017, due to legislation enacted in the state of Illinois. Accordingly, we recorded a deferred state income tax adjustment of $3.1 million in the quarter. Finally, the 2017 effective tax rate reflects incremental benefits associated with equity awards in accordance with the adoption of new accounting rules and the impact of reductions in the statutory tax rates in Quebec and Saskatchewan, Canada and India, partially offset by an increase to the effective tax rate in Germany.