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Income Taxes | 6 Months Ended
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Jun. 30, 2015
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes: The effective income tax rate for the three-month and six-month periods ended June 30, 2015 was 24.2% and 25.7%, respectively, compared to 21.7% and 20.5% for the three-month and six-month periods ended June 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 six-month periods ended June 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. Additionally, our effective income tax rate for the three-month and six-month periods ended June 30, 2015 was affected by a discrete tax benefit of $1.0 million related mainly to prior year uncertain tax position adjustments associated with lapses in statutes of limitations. Our effective income tax rate for the six-month period ended June 30, 2015 was also affected by (i) $3.2 million of discrete tax expense items associated with U.S. provision to return adjustments and the release of uncertain tax positions associated with a lapse in the statute of limitations, and (ii) the OPEB plan termination gain described in Note 12, “Pension Plans and Other Postretirement Benefits.” Our effective income tax rate for the six months ended June 30, 2014 was affected by a tax benefit of approximately $5.8 million related to the restructuring charges (see Note 15, “Restructuring and Other”) and pension plan actuarial loss (see Note 12) that were recorded in such period.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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