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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2013
Income Tax Disclosure [Abstract] |
Income (Loss) Before Income Tax Provision | (Loss) income from continuing operations before income taxes consists of the following (in thousands):
| Year ended December 31,
| 2013 |  | 2012 |  | 2011
United States | $ | (31,521 | ) |  | $ | (27,068 | ) |  | $ | (14,164 | )
International | 8,369 |  |  | 9,373 |  |  | 15,531 |
(Loss) income from continuing operations before income taxes | $ | (23,152 | ) |  | $ | (17,695 | ) |  | $ | 1,367 |
Provision for Income Taxes | The components of the benefit from income taxes consist of the following (in thousands):
| Year ended December 31,
| 2013 |  | 2012 |  | 2011
Current: |  |  |  |  |
Federal | $ | (38,243 | ) |  | $ | 857 |  |  | $ | (95 | )
State | 93 |  |  | 212 |  |  | 529 |
International | 1,988 |  |  | 1,193 |  |  | 1,222 |
Deferred: |  |  |  |  |
Federal | (10,543 | ) |  | (2,053 | ) |  | (3,618 | )
State | 3,023 |  |  | (1,362 | ) |  | (392 | )
International | (1,059 | ) |  | (353 | ) |  | 1,703 |
Total benefit from income taxes | $ | (44,741 | ) |  | $ | (1,506 | ) |  | $ | (651 | )
Reconciliation of Provision for Income Taxes | The differences between the (benefit from) provision for income taxes computed at the U.S. federal statutory rate at 35% and the Company’s actual (benefit from) provision for income taxes are as follows (in thousands):
| Year ended December 31,
| 2013 |  | 2012 |  | 2011
(Benefit from) provision for income taxes at U.S. Federal statutory rate | $ | (8,103 | ) |  | $ | (6,193 | ) |  | $ | 478 |
State taxes | 2,940 |  |  | (824 | ) |  | (1,034 | )
Differential in rates on foreign earnings | (1,396 | ) |  | (4,880 | ) |  | (9,565 | )
Losses for which no benefit is taken | 4,311 |  |  | 7,279 |  |  | 9,185 |
Change in valuation allowance | (996 | ) |  | (1,104 | ) |  | 1,822 |
Change in liabilities for uncertain tax positions | (35,742 | ) |  | 1,495 |  |  | (1,666 | )
Non-deductible stock-based compensation | 981 |  |  | 1,974 |  |  | 1,854 |
Research and development tax credits | (5,044 | ) |  | — |  |  | (2,006 | )
Non-deductible meals and entertainment | 346 |  |  | 208 |  |  | 213 |
Adjustments related to tax positions taken during prior years | (1,154 | ) |  | 619 |  |  | (255 | )
Tax-exempt investment income | (304 | ) |  | (248 | ) |  | (71 | )
Other | (580 | ) |  | 168 |  |  | 394 |
Total (benefit from) provision for income taxes | $ | (44,741 | ) |  | $ | (1,506 | ) |  | $ | (651 | )
Components of Deferred Tax Assets and Liabilities | The components of net deferred tax assets included in the Consolidated Balance Sheets are as follows (in thousands):
| December 31,
| 2013 |  | 2012
Deferred tax assets: |  |  |
Reserves and accruals | $ | 29,235 |  |  | $ | 31,999 |
Net operating loss carryovers | 27,253 |  |  | 27,522 |
Research and development credit carryovers | 18,391 |  |  | 13,704 |
Deferred stock-based compensation | 7,554 |  |  | 7,684 |
Other tax credits | 2,738 |  |  | 2,207 |
Gross deferred tax assets | 85,171 |  |  | 83,116 |
Valuation allowance | (38,644 | ) |  | (34,347 | )
Gross deferred tax assets after valuation allowance | 46,527 |  |  | 48,769 |
Deferred tax liabilities: |  |  |
Depreciation and amortization | (3,590 | ) |  | (5,485 | )
Intangibles | (6,227 | ) |  | (11,656 | )
Other | (738 | ) |  | (483 | )
Gross deferred tax liabilities | (10,555 | ) |  | (17,624 | )
Net deferred tax assets | $ | 35,972 |  |  | $ | 31,145 |
Activities Related to Valuation Allowance |
| Year ended December 31,
| 2013 |  | 2012 |  | 2011
Balance at beginning of period | $ | 34,347 |  |  | $ | 28,354 |  |  | $ | 26,557 |
Additions | 6,364 |  |  | 5,993 |  |  | 1,797 |
Deductions | (2,067 | ) |  | — |  |  | — |
Balance at end of period | $ | 38,644 |  |  | $ | 34,347 |  |  | $ | 28,354 |
Activities Related to Gross Unrecognized Tax Benefits | The following table summarizes the activity related to the Company’s gross unrecognized tax benefits (in millions):
| Year ended December 31,
| 2013 |  | 2012 |  | 2011
Balance at beginning of period | 52.1 |  |  | 52.5 |  |  | 48.4 |
Increase in balance related to tax positions taken during current year | 5.4 |  |  | 0.6 |  |  | 6.6 |
Decrease in balance as a result of a lapse of the applicable statues of limitations | (1.3 | ) |  | (0.9 | ) |  | (2.1 | )
Decrease in balance due to settlement with tax authorities | (32.1 | ) |  | — |  |  | — |
Increase in balance related to tax positions taken during prior years | 0.1 |  |  | — |  |  | — |
Decrease in balance related to tax positions taken during prior years | — |  |  | (0.1 | ) |  | (0.4 | )
Balance at end of period | 24.2 |  |  | 52.1 |  |  | 52.5 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of unrecognized tax benefits for which a material change is reasonably possible in the next twelve months, typically including the nature of the uncertainty, the event(s) that could cause a material change, and an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made. An unrecognized tax benefit is the difference between a tax position taken in a tax return and the amounts recognized in the financial statements for which it is more likely than not, based on the technical merits of the position, that the tax position will not be sustained upon examination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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