Income Taxes	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company's effective tax rate varies depending on the jurisdiction in which the income is earned. Certain foreign sourced income is taxed at a lower effective rate than U.S. income. Under the requirements of ASC 740, the Company intends to indefinitely reinvest its non-U.S. subsidiaries earnings outside the United States and does not provide for residual U.S. tax on these earnings. The provision for income taxes for the nine months ending September 30, 2017 reflects a net charge of $1.1 million related to excess tax benefits and tax deficiencies for its restricted stock unit compensation as required by new accounting guidance for share-based compensation effective January 1, 2017. The Company's condensed consolidated statements of income for periods prior to January 1, 2017 record these excess tax benefits and tax deficiencies as a charge or benefit to stockholders' equity. The Company believes it is more likely than not that the deferred tax asset, which relates principally to compensation expense deducted for book purposes but not yet deducted for tax purposes, will be realized as offsets to: (i) the realization of its deferred tax liabilities and (ii) future taxable income. Any gain or loss resulting from the translation of deferred taxes for foreign affiliates is included in the foreign currency translation adjustment incorporated as a component of other comprehensive income, net of tax, in the condensed consolidated statements of changes in stockholders' equity and the condensed consolidated statements of comprehensive income. The Company's income tax returns are routinely examined by the U.S. federal, U.S. state, and international tax authorities. The Company regularly assesses its tax positions with respect to applicable income tax issues for open tax years in each respective jurisdiction in which the Company operates. As of September 30, 2017, the Company does not believe the resolution of any current ongoing income tax examinations will have a material adverse impact on the financial position of the Company.

Income Taxes

The Company's effective tax rate varies depending on the jurisdiction in which the income is earned. Certain foreign sourced income is taxed at a lower effective rate than U.S. income.

Under the requirements of ASC 740, the Company intends to indefinitely reinvest its non-U.S. subsidiaries earnings outside the United States and does not provide for residual U.S. tax on these earnings.

The provision for income taxes for the nine months ending September 30, 2017 reflects a net charge of $1.1 million related to excess tax benefits and tax deficiencies for its restricted stock unit compensation as required by new accounting guidance for share-based compensation effective January 1, 2017. The Company's condensed consolidated statements of income for periods prior to January 1, 2017 record these excess tax benefits and tax deficiencies as a charge or benefit to stockholders' equity.

The Company believes it is more likely than not that the deferred tax asset, which relates principally to compensation expense deducted for book purposes but not yet deducted for tax purposes, will be realized as offsets to: (i) the realization of its deferred tax liabilities and (ii) future taxable income.

Any gain or loss resulting from the translation of deferred taxes for foreign affiliates is included in the foreign currency translation adjustment incorporated as a component of other comprehensive income, net of tax, in the condensed consolidated statements of changes in stockholders' equity and the condensed consolidated statements of comprehensive income.

The Company's income tax returns are routinely examined by the U.S. federal, U.S. state, and international tax authorities. The Company regularly assesses its tax positions with respect to applicable income tax issues for open tax years in each respective jurisdiction in which the Company operates. As of September 30, 2017, the Company does not believe the resolution of any current ongoing income tax examinations will have a material adverse impact on the financial position of the Company.