Income Taxes	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three month period ended June 30, 2018, the Company recorded a provision for income taxes of $2,267 (effective tax rate of 12.6 percent) compared to $22,298 (effective tax rate of 32.7 percent) for the same period in 2017. For the six month period ended June 30, 2018, the Company recorded a provision for income taxes of $5,718 (effective tax rate of 18.8 percent) compared to $35,325 (effective tax rate of 32.0 percent) for the same period in 2017. The 2018 and 2017 three and six month period provisions for income taxes are calculated using a forecasted multi-jurisdictional annual effective tax rate to determine a blended annual effective tax rate. The effective tax rate for the three month period ended June 30, 2018 differs from the U.S. federal statutory rate of 21 percent primarily due to net discrete tax benefits of $1,059 recorded during the quarter, the projected mix of earnings in international jurisdictions with differing tax rates, and jurisdictions where valuation allowances are recorded. The effective tax rate for the six month period ended June 30, 2018 differs from the U.S. federal statutory rate of 21 percent primarily due to net discrete tax benefits of $292 recorded during the period, partially offset by increases in unrecognized tax benefits recorded in the period, the projected mix of earnings in international jurisdictions with differing tax rates, and jurisdictions where valuation allowances are recorded. At December 31, 2017, as a result of the U.S. Tax Cuts and Jobs Act (the “Tax Act”) enacted on December 22, 2017 and in conjunction with guidance set forth under SAB 118, the Company recorded provisional amounts both for the impact of remeasurement on its U.S. deferred tax assets to the new U.S. statutory rate of 21% and for the mandatory Transition Tax on unrepatriated foreign earnings. At June 30, 2018, the Company has not yet completed its accounting for the tax effect of these elements of the Tax Act and as such, adjustments to these provisional amounts have not been made. The Tax Act also subjects a U.S. parent shareholder to current tax on its global intangible low-taxed income (“GILTI”). At December 31, 2017, a provisional estimate under SAB 118 could not be made and the Company had not yet elected an accounting policy to either recognize deferred taxes for basis differences expected to reverse as GILTI or to record GILTI as a period cost when incurred. Due to the complexity of the GILTI provisions, the Company continues to evaluate the impact of GILTI and has not yet determined its accounting policy; however, at June 30, 2018, a reasonable estimate of GILTI related to current year operations has been made and included in the annual effective tax rate as a period cost. The Company did not record additional GILTI related to basis differences. The Company continues to maintain a valuation allowance pursuant to ASC 740, “Accounting for Income Taxes,” against portions of its U.S. and non-U.S. deferred tax assets at June 30, 2018, as it cannot assure the future realization of the associated tax benefits prior to their reversal or expiration. In the U.S., the Company has offset a portion of its deferred tax asset relating primarily to a loss carryforward by a valuation allowance of $1,413. In addition, the Company has recorded valuation allowances of $28,153 relating to non-U.S. net operating losses and other deferred tax assets for a total valuation allowance of $29,566. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company will continue to reassess the possibility of releasing all or part of the valuation allowances currently in place when the associated deferred tax assets are deemed to be realizable. The Company maintains an ASC 740-10, “Accounting for Uncertainty in Income Taxes,” liability for unrecognized tax benefits for permanent and temporary differences. At June 30, 2018, the Company’s liability, exclusive of penalty and interest, totals approximately $2,787. The Company accrued an immaterial amount of interest expense related to these unrecognized tax benefits during the quarter and six month periods ended June 30, 2018. Based upon the outcome of tax examinations, judicial proceedings, or expiration of statutes of limitations, it is possible that the ultimate resolution of the Company's unrecognized tax benefits may result in a payment that is materially different from the current estimate of the tax liabilities. The Company and its subsidiaries are subject to income tax examinations in the U.S. federal jurisdiction and various state and foreign jurisdictions. The Company has effectively settled U.S. federal tax examinations for years before 2014 and state and local examinations for years before 2013, with limited exceptions. Non-U.S. subsidiaries of the Company are no longer subject to income tax examinations in major foreign taxing jurisdictions for years prior to 2007. The income tax returns of various subsidiaries in various jurisdictions are currently under examination and it is possible that these examinations will conclude within the next twelve months. However, it is not possible to estimate net increases or decreases to the Company’s unrecognized tax benefits during the next twelve months.

Income Taxes

For the three month period ended June 30, 2018, the Company recorded a provision for income taxes of $2,267 (effective tax rate of 12.6 percent) compared to $22,298 (effective tax rate of 32.7 percent) for the same period in 2017. For the six month period ended June 30, 2018, the Company recorded a provision for income taxes of $5,718 (effective tax rate of 18.8 percent) compared to $35,325 (effective tax rate of 32.0 percent) for the same period in 2017. The 2018 and 2017 three and six month period provisions for income taxes are calculated using a forecasted multi-jurisdictional annual effective tax rate to determine a blended annual effective tax rate. The effective tax rate for the three month period ended June 30, 2018 differs from the U.S. federal statutory rate of 21 percent primarily due to net discrete tax benefits of $1,059 recorded during the quarter, the projected mix of earnings in international jurisdictions with differing tax rates, and jurisdictions where valuation allowances are recorded. The effective tax rate for the six month period ended June 30, 2018 differs from the U.S. federal statutory rate of 21 percent primarily due to net discrete tax benefits of $292 recorded during the period, partially offset by increases in unrecognized tax benefits recorded in the period, the projected mix of earnings in international jurisdictions with differing tax rates, and jurisdictions where valuation allowances are recorded.

At December 31, 2017, as a result of the U.S. Tax Cuts and Jobs Act (the “Tax Act”) enacted on December 22, 2017 and in conjunction with guidance set forth under SAB 118, the Company recorded provisional amounts both for the impact of remeasurement on its U.S. deferred tax assets to the new U.S. statutory rate of 21% and for the mandatory Transition Tax on unrepatriated foreign earnings. At June 30, 2018, the Company has not yet completed its accounting for the tax effect of these elements of the Tax Act and as such, adjustments to these provisional amounts have not been made.

The Tax Act also subjects a U.S. parent shareholder to current tax on its global intangible low-taxed income (“GILTI”). At December 31, 2017, a provisional estimate under SAB 118 could not be made and the Company had not yet elected an accounting policy to either recognize deferred taxes for basis differences expected to reverse as GILTI or to record GILTI as a period cost when incurred. Due to the complexity of the GILTI provisions, the Company continues to evaluate the impact of GILTI and has not yet determined its accounting policy; however, at June 30, 2018, a reasonable estimate of GILTI related to current year operations has been made and included in the annual effective tax rate as a period cost. The Company did not record additional GILTI related to basis differences.

The Company continues to maintain a valuation allowance pursuant to ASC 740, “Accounting for Income Taxes,” against portions of its U.S. and non-U.S. deferred tax assets at June 30, 2018, as it cannot assure the future realization of the associated tax benefits prior to their reversal or expiration. In the U.S., the Company has offset a portion of its deferred tax asset relating primarily to a loss carryforward by a valuation allowance of $1,413. In addition, the Company has recorded valuation allowances of $28,153 relating to non-U.S. net operating losses and other deferred tax assets for a total valuation allowance of $29,566. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company will continue to reassess the possibility of releasing all or part of the valuation allowances currently in place when the associated deferred tax assets are deemed to be realizable.

The Company maintains an ASC 740-10, “Accounting for Uncertainty in Income Taxes,” liability for unrecognized tax benefits for permanent and temporary differences. At June 30, 2018, the Company’s liability, exclusive of penalty and interest, totals approximately $2,787. The Company accrued an immaterial amount of interest expense related to these unrecognized tax benefits during the quarter and six month periods ended June 30, 2018. Based upon the outcome of tax examinations, judicial proceedings, or expiration of statutes of limitations, it is possible that the ultimate resolution of the Company's unrecognized tax benefits may result in a payment that is materially different from the current estimate of the tax liabilities.

The Company and its subsidiaries are subject to income tax examinations in the U.S. federal jurisdiction and various state and foreign jurisdictions. The Company has effectively settled U.S. federal tax examinations for years before 2014 and state and local examinations for years before 2013, with limited exceptions. Non-U.S. subsidiaries of the Company are no longer subject to income tax examinations in major foreign taxing jurisdictions for years prior to 2007. The income tax returns of various subsidiaries in various jurisdictions are currently under examination and it is possible that these examinations will conclude within the next twelve months. However, it is not possible to estimate net increases or decreases to the Company’s unrecognized tax benefits during the next twelve months.