Income Taxes	9 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes: The effective income tax rate for the three-month and nine-month periods ended September 30, 2015 was 20.7% and 23.7%, respectively, compared to 12.9% and 17.8% for the three-month and nine-month periods ended September 30, 2014, respectively. The Company’s effective income tax rate fluctuates based on, among other factors, our level and location of income. The difference between the U.S. federal statutory income tax rate and our effective income tax rate for the 2015 and 2014 periods is mainly due to the impact of earnings from outside the U.S. The increase in the effective tax rates for the three-month and nine-month periods ended September 30, 2015 compared to the same periods in 2014 is primarily driven by the Rockwood acquisition, which caused a reduction in various benefits in our effective tax rate. Our effective income tax rate for the nine-month period ended September 30, 2015 was also affected by discrete net tax expense items of $2.9 million related mainly to prior year uncertain tax position adjustments associated with lapses in statutes of limitations, items associated with U.S. provision to return adjustments, and the OPEB plan termination gain described in Note 12, “Pension Plans and Other Postretirement Benefits.” Our effective income tax rate for the three-month period ended September 30, 2014 was also impacted by discrete net tax benefit items of $3.2 million, related principally to the expiration of the U.S. federal statute of limitations and a pension plan actuarial loss that was recorded in the period. Our effective income tax rate for the nine-month period ended September 30, 2014 was also affected by tax benefits of $14.7 million related to restructuring charges, a pension plan actuarial loss and the release of reserves related principally to the expiration of the U.S. federal statute of limitations that occurred in such period. Included in Other current assets in our condensed consolidated balance sheets for the periods ended September 30, 2015 and December 31, 2014 are income tax receivables of $93.1 million and $22.8 million, respectively. Based on management’s continued evaluation of uncertain tax positions acquired in the Rockwood transaction and the progress of various tax audits and other tax matters, the Company believes that it is reasonably possible that a material change in its uncertain tax positions, which is not currently estimable, could occur within twelve months of the reporting date.

Income Taxes:

The effective income tax rate for the three-month and nine-month periods ended September 30, 2015 was 20.7% and 23.7%, respectively, compared to 12.9% and 17.8% for the three-month and nine-month periods ended September 30, 2014, respectively. The Company’s effective income tax rate fluctuates based on, among other factors, our level and location of income. The difference between the U.S. federal statutory income tax rate and our effective income tax rate for the 2015 and 2014 periods is mainly due to the impact of earnings from outside the U.S. The increase in the effective tax rates for the three-month and nine-month periods ended September 30, 2015 compared to the same periods in 2014 is primarily driven by the Rockwood acquisition, which caused a reduction in various benefits in our effective tax rate. Our effective income tax rate for the nine-month period ended September 30, 2015 was also affected by discrete net tax expense items of $2.9 million related mainly to prior year uncertain tax position adjustments associated with lapses in statutes of limitations, items associated with U.S. provision to return adjustments, and the OPEB plan termination gain described in Note 12, “Pension Plans and Other Postretirement Benefits.” Our effective income tax rate for the three-month period ended September 30, 2014 was also impacted by discrete net tax benefit items of $3.2 million, related principally to the expiration of the U.S. federal statute of limitations and a pension plan actuarial loss that was recorded in the period. Our effective income tax rate for the nine-month period ended September 30, 2014 was also affected by tax benefits of $14.7 million related to restructuring charges, a pension plan actuarial loss and the release of reserves related principally to the expiration of the U.S. federal statute of limitations that occurred in such period.

Included in Other current assets in our condensed consolidated balance sheets for the periods ended September 30, 2015 and December 31, 2014 are income tax receivables of $93.1 million and $22.8 million, respectively.

Based on management’s continued evaluation of uncertain tax positions acquired in the Rockwood transaction and the progress of various tax audits and other tax matters, the Company believes that it is reasonably possible that a material change in its uncertain tax positions, which is not currently estimable, could occur within twelve months of the reporting date.