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Income Taxes | 6 Months Ended
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Jun. 30, 2017
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes We believe that our recorded deferred tax assets and liabilities are reasonable. However, tax laws and regulations are subject to interpretation and tax disputes are inherently uncertain, and therefore our assessments can involve a series of complex judgments about future events and rely heavily on estimates and assumptions. The effective tax rates for the three- and six-month periods ended June 30, 2017 were (364.0)% and (1.9)%, respectively. The effective tax rates for the three- and six-month periods ended June 30, 2016 were 28.3% and 26.0%, respectively. The variance was primarily attributable to the earnings mix between our higher and lower tax rate jurisdictions and a change in tax position related to our foreign taxes. We continued recording income taxes using a year-to-date effective tax rate method for the three- and six-month periods ended June 30, 2017. The use of this method was based on our expectations at June 30, 2017 that a small change in our estimated ordinary income could result in a large change in the estimated annual effective tax rate. We will re-evaluate our use of this method each quarter until such time as a return to the annualized effective tax rate method is deemed appropriate. Income taxes are provided based on the U.S. statutory rate of 35% and at the local statutory rate for each foreign jurisdiction adjusted for items that are allowed as deductions for federal and foreign income tax reporting purposes, but not for book purposes. The primary differences between the U.S. statutory rate and our effective rate are as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
U.S. statutory rate | 35.0 | % |  | 35.0 | % |  | 35.0 | % |  | 35.0 | %
Foreign provision | 79.7 |  |  | (8.3 | ) |  | (5.5 | ) |  | (9.3 | )
Change in tax position (1) | (459.7 | ) |  | — |  |  | (28.3 | ) |  | — |
Other | (19.0 | ) |  | 1.6 |  |  | (3.1 | ) |  | 0.3 |
Effective rate | (364.0 | )% |  | 28.3 | % |  | (1.9 | )% |  | 26.0 | %
(1) | We consider all available evidence, both positive and negative, when determining whether a valuation allowance is required against deferred tax assets. Due to weaker near term outlook and financial results primarily associated with our Robotics segment, we currently do not anticipate generating sufficient foreign source income to fully utilize our foreign tax credits prior to their expiration. We have concluded that it is more likely than not that previously benefited deferred tax assets on foreign tax credits will not be realized. As a result of this change in tax position, we recorded a tax charge of $6.3 million in June 2017, which is comprised of a $2.8 million valuation allowance attributable to a foreign tax credit carryforward from 2015 and a $3.5 million charge attributable to the decision to deduct foreign taxes related to 2016 and 2017.

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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 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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