INCOME TAXES (Tables)
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12 Months Ended |
Dec. 31, 2018 |
Income Tax Disclosure [Abstract] |
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Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
The components of pretax income (loss) from continuing operations for the years ended December 31, 2018, 2017 and 2016 were as follows (in thousands): | | | | | | | | | | | | | | Year Ended December 31, | | 2018 | | 2017 | | 2016 | United States | $ | 23,349 |
| | $ | 30,095 |
| | $ | (119,095 | ) | International | (22,318 | ) | | 6,050 |
| | (52,432 | ) | Income (loss) before provision (benefit) for income taxes | $ | 1,031 |
| | $ | 36,145 |
| | $ | (171,527 | ) |
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Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
The provision (benefit) for income taxes for the years ended December 31, 2018, 2017 and 2016 was allocated between continuing operations and discontinued operations as follows (in thousands): | | | | | | | | | | | | | | Year Ended December 31, | | 2018 | | 2017 | | 2016 | Continuing Operations | $ | (957 | ) | | $ | 7,544 |
| | $ | (5,318 | ) | Discontinued Operations | — |
| | — |
| | 2,771 |
| Total | $ | (957 | ) | | $ | 7,544 |
| | $ | (2,547 | ) |
The provision (benefit) for income taxes from continuing operations for the years ended December 31, 2018, 2017 and 2016 consisted of the following components (in thousands): | | | | | | | | | | | | | | Year Ended December 31, | | 2018 | | 2017 | | 2016 | Current taxes: | | | | | | U.S. federal | $ | 768 |
| | $ | (120 | ) | | $ | (1,093 | ) | State | 57 |
| | 191 |
| | 912 |
| International | 3,218 |
| | 6,870 |
| | 5,311 |
| Total current taxes | 4,043 |
| | 6,941 |
| | 5,130 |
| Deferred taxes: | | | | | | U.S. federal | (319 | ) | | (1,335 | ) | | (4,262 | ) | State | — |
| | 50 |
| | (11 | ) | International | (4,681 | ) | | 1,888 |
| | (6,175 | ) | Total deferred taxes | (5,000 | ) | | 603 |
| | (10,448 | ) | Provision (benefit) for income taxes | $ | (957 | ) | | $ | 7,544 |
| | $ | (5,318 | ) |
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Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
The items accounting for differences between the income tax provision (benefit) from continuing operations computed at the U.S. federal statutory rate and the provision (benefit) for income taxes for the years ended December 31, 2018, 2017 and 2016 were as follows (in thousands): | | | | | | | | | | | | | | Year Ended December 31, | | 2018 | | 2017 | | 2016 | U.S. federal income tax provision (benefit) at statutory rate | $ | 216 |
| | $ | 12,651 |
| | $ | (60,035 | ) | Foreign income and losses taxed at different rates (1) | 2,113 |
| | 4,524 |
| | 9,410 |
| State income taxes, net of federal benefits, and state tax credits | 1,966 |
| | (4,980 | ) | | (4,694 | ) | Change in valuation allowances | 3,829 |
| | (36,057 | ) | | 13,797 |
| Effect of income tax rate changes on deferred items (2) | 1,544 |
| | 20,466 |
| | 7,135 |
| Tax effects of intercompany transactions | 607 |
| | 3,332 |
| | 853 |
| Adjustments related to uncertain tax positions | 18 |
| | 1,824 |
| | (4,899 | ) | Non-deductible stock-based compensation expense | 3,239 |
| | 5,002 |
| | 6,724 |
| Tax shortfalls on stock-based compensation awards | (335 | ) | | 4,290 |
| | 12,585 |
| Non-deductible (or non-taxable) change in fair value of investment | — |
| | — |
| | 4,484 |
| Federal research and development credits | (8,331 | ) | | (7,862 | ) | | (8,547 | ) | Forgiveness of intercompany liabilities | (1,340 | ) | | (2,494 | ) | | 15,187 |
| Deductions for investments in subsidiaries that have ceased operations | — |
| | — |
| | (645 | ) | Ordinary stock loss | (11,815 | ) | | — |
| | — |
| Non-taxable gains on business dispositions | — |
| | — |
| | (3,481 | ) | Non-deductible or non-taxable items | 7,332 |
| | 6,848 |
| | 6,808 |
| Provision (benefit) for income taxes | $ | (957 | ) | | $ | 7,544 |
| | $ | (5,318 | ) |
| | (1) | Tax rates in foreign jurisdictions were generally lower than the U.S. federal statutory rate through December 31, 2018. This results in an adverse impact to the provision (benefit) for income taxes in this rate reconciliation for the years ended December 31, 2018, 2017 and 2016, prior to the impact of valuation allowances, due to the net pretax losses from continuing operations in certain foreign jurisdictions with lower tax rates. |
| | (2) | The effect of income tax rate changes on deferred items for the year ended December 31, 2017 is primarily related to the U.S. tax reform legislation that was signed into law on December 22, 2017, which included a reduction of the U.S. Federal income tax rate to 21 percent. That rate reduction did not impact the Company's provision for income taxes for the year ended December 31, 2017 due to the valuation allowance against the Company's U.S. net deferred tax assets. |
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Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
The deferred income tax assets and liabilities consisted of the following components as of December 31, 2018 and 2017 (in thousands): | | | | | | | | | | December 31, | | 2018 | | 2017 | Deferred tax assets: | | | | Accrued expenses and other liabilities | $ | 25,694 |
| | $ | 36,786 |
| Stock-based compensation | 5,167 |
| | 3,720 |
| Net operating loss and tax credit carryforwards | 206,328 |
| | 208,040 |
| Intangible assets, net | 16,482 |
| | 23,722 |
| Investments | 5,916 |
| | 814 |
| Unrealized foreign currency exchange losses | 1,882 |
| | 2,771 |
| Other | 1,021 |
| | 687 |
| Total deferred tax assets | 262,490 |
| | 276,540 |
| Less: Valuation allowances | (228,023 | ) | | (238,702 | ) | Deferred tax assets, net of valuation allowance | 34,467 |
| | 37,838 |
| Deferred tax liabilities: | | | | Prepaid expenses and other assets | (12,737 | ) | | (10,011 | ) | Property, equipment and software, net | (12,576 | ) | | (11,315 | ) | Convertible senior notes | (2,457 | ) | | (2,773 | ) | Deferred revenue | (7,255 | ) | | (10,436 | ) | Total deferred tax liabilities | (35,025 | ) | | (34,535 | ) | Net deferred tax asset (liability) | $ | (558 | ) | | $ | 3,303 |
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Summary of Income Tax Contingencies [Table Text Block] |
The following table summarizes activity related to our gross unrecognized tax benefits, excluding interest and penalties, for the years ended December 31, 2018, 2017 and 2016 (in thousands): | | | | | | | | | | | | | | Year Ended December 31, | | 2018 | | 2017 | | 2016 | Beginning Balance | $ | 87,359 |
| | $ | 80,081 |
| | $ | 79,637 |
| Increases related to prior year tax positions | 1,500 |
| | 960 |
| | 1,708 |
| Decreases related to prior year tax positions | (21 | ) | | (1,196 | ) | | (3,154 | ) | Increases related to current year tax positions | 7,533 |
| | 9,571 |
| | 11,443 |
| Decreases based on settlements with taxing authorities | — |
| | — |
| | (3,176 | ) | Decreases due to lapse of statute limitations | (9,447 | ) | | (3,777 | ) | | (4,906 | ) | Foreign currency translation | 713 |
| | 1,720 |
| | (1,471 | ) | Ending Balance | $ | 87,637 |
| | $ | 87,359 |
| | $ | 80,081 |
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