Income Taxes	9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective tax rate from continuing operations for the three and nine months ended September 30, 2018 was 38.6% and 86.9%, respectively. The effective tax rate for the three and nine months ended September 30, 2018 was higher than the U.S. federal statutory rate of 21% primarily due to foreign net operating losses for which the future income tax benefit cannot be currently recognized, state income taxes and certain non-deductible expenses. The impact of these items was partially offset by no income tax provision being recorded on the gain on remeasurement of cost method investment of $6,577. The effective tax rate for the nine months ended September 30, 2018 was additionally impacted by the WD Services impairment charge of $9,202, which contributes to the tax basis in WD Services but does not generate a current tax benefit. The Company’s effective tax rate from continuing operations for the three and nine months ended September 30, 2017 was 16.7% and 28.8%, respectively. The effective tax rate for the three and nine months ended September 30, 2017 was lower than the U.S. federal statutory rate of 35% primarily due to no provision for income taxes related to the gain on sale of equity investment of $12,606 due to the substantial difference in tax basis versus book basis in the investment. On December 22, 2017, the U.S. bill commonly referred to as the Tax Cuts and Jobs Act (“Tax Reform Act”) was enacted which institutes fundamental changes to the taxation of multinational corporations. As a result of the Tax Reform Act, the U.S. corporate income tax rate was reduced to 21% and the Company revalued its ending net deferred tax liabilities as of December 31, 2017. The Company recognized a provisional tax benefit of $19,397 in its consolidated financial statements for the year ended December 31, 2017. The final impact of the Tax Reform Act may differ from these provisional amounts, possibly materially, due to, among other things, issuance of additional regulatory guidance, changes in interpretations and assumptions the Company has made, and actions the Company may take as a result of the Tax Reform Act. There have been no changes to the Company's provisional tax benefit recognized in 2017. The Company expects the financial reporting impact of the Tax Reform Act will be completed in the fourth quarter of 2018, after the Company’s 2017 income tax returns are filed.

Income Taxes

The Company’s effective tax rate from continuing operations for the three and nine months ended September 30, 2018 was 38.6% and 86.9%, respectively. The effective tax rate for the three and nine months ended September 30, 2018 was higher than the U.S. federal statutory rate of 21% primarily due to foreign net operating losses for which the future income tax benefit cannot be currently recognized, state income taxes and certain non-deductible expenses. The impact of these items was partially offset by no income tax provision being recorded on the gain on remeasurement of cost method investment of $6,577. The effective tax rate for the nine months ended September 30, 2018 was additionally impacted by the WD Services impairment charge of $9,202, which contributes to the tax basis in WD Services but does not generate a current tax benefit.

The Company’s effective tax rate from continuing operations for the three and nine months ended September 30, 2017 was 16.7% and 28.8%, respectively. The effective tax rate for the three and nine months ended September 30, 2017 was lower than the U.S. federal statutory rate of 35% primarily due to no provision for income taxes related to the gain on sale of equity investment of $12,606 due to the substantial difference in tax basis versus book basis in the investment.

On December 22, 2017, the U.S. bill commonly referred to as the Tax Cuts and Jobs Act (“Tax Reform Act”) was enacted which institutes fundamental changes to the taxation of multinational corporations. As a result of the Tax Reform Act, the U.S. corporate income tax rate was reduced to 21% and the Company revalued its ending net deferred tax liabilities as of December 31, 2017. The Company recognized a provisional tax benefit of $19,397 in its consolidated financial statements for the year ended December 31, 2017. The final impact of the Tax Reform Act may differ from these provisional amounts, possibly materially, due to, among other things, issuance of additional regulatory guidance, changes in interpretations and assumptions the Company has made, and actions the Company may take as a result of the Tax Reform Act. There have been no changes to the Company's provisional tax benefit recognized in 2017. The Company expects the financial reporting impact of the Tax Reform Act will be completed in the fourth quarter of 2018, after the Company’s 2017 income tax returns are filed.