Income Taxes Income Tax (Tables)
|
12 Months Ended |
Dec. 31, 2016 |
|---|
| Income Tax Disclosure [Abstract] |
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| Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
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|
Years Ended December 31, |
|
2016 |
|
2015 |
|
2014 |
|
(in thousands) |
Domestic |
$ |
75,778 |
|
|
$ |
(44,094 |
) |
|
$ |
(9,631 |
) |
Foreign |
(12,088 |
) |
|
1,188 |
|
|
886 |
|
Income (loss) before income taxes |
$ |
63,690 |
|
|
$ |
(42,906 |
) |
|
$ |
(8,745 |
) |
|
| Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
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Years Ended December 31, |
|
2016 |
|
2015 |
|
2014 |
|
(in thousands) |
Current: |
|
|
|
|
|
Federal |
$ |
1,216 |
|
|
$ |
— |
|
|
$ |
— |
|
State |
(11 |
) |
|
16 |
|
|
1 |
|
Foreign |
1,092 |
|
|
942 |
|
|
577 |
|
Total current |
2,297 |
|
|
958 |
|
|
578 |
|
Deferred: |
|
|
|
|
|
Federal |
17,492 |
|
|
(13,759 |
) |
|
(3,341 |
) |
State |
(8,271 |
) |
|
(1,034 |
) |
|
253 |
|
Foreign |
(2,459 |
) |
|
126 |
|
|
54 |
|
Valuation allowance release due to acquisition |
— |
|
|
(1,757 |
) |
|
(2,335 |
) |
Change in valuation allowance |
(6,661 |
) |
|
14,891 |
|
|
3,087 |
|
Total deferred |
101 |
|
|
(1,533 |
) |
|
(2,282 |
) |
Total income tax provision (benefit) |
$ |
2,398 |
|
|
$ |
(575 |
) |
|
$ |
(1,704 |
) |
|
| Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
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|
Years Ended December 31, |
|
2016 |
|
2015 |
|
2014 |
|
(in thousands) |
Provision (benefit) at statutory rate |
$ |
22,294 |
|
|
$ |
(14,588 |
) |
|
$ |
(2,973 |
) |
State income taxes (net of federal benefit) |
(13 |
) |
|
275 |
|
|
(391 |
) |
Research and development credits |
(9,076 |
) |
|
(2,083 |
) |
|
(66 |
) |
Foreign rate differential |
2,888 |
|
|
(62 |
) |
|
(31 |
) |
Stock compensation |
(5,756 |
) |
|
549 |
|
|
609 |
|
Foreign deemed dividend |
51 |
|
|
279 |
|
|
— |
|
Transaction costs |
749 |
|
|
1,329 |
|
|
— |
|
Uncertain tax positions |
(1,204 |
) |
|
600 |
|
|
304 |
|
Foreign tax credits |
(72 |
) |
|
(144 |
) |
|
— |
|
Permanent and other |
(802 |
) |
|
96 |
|
|
92 |
|
Valuation allowance release due to acquisition |
— |
|
|
(1,757 |
) |
|
(2,335 |
) |
Valuation allowance |
(6,661 |
) |
|
14,931 |
|
|
3,087 |
|
Total provision (benefit) for income taxes |
$ |
2,398 |
|
|
$ |
(575 |
) |
|
$ |
(1,704 |
) |
|
| Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
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|
|
|
|
|
|
|
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|
December 31, |
|
2016 |
|
2015 |
|
(in thousands) |
Deferred tax assets: |
|
|
|
Net operating loss carryforwards |
$ |
19,524 |
|
|
$ |
27,996 |
|
Research and development credits |
58,170 |
|
|
48,531 |
|
Accrued expenses and other |
13,387 |
|
|
13,654 |
|
Accrued compensation |
2,073 |
|
|
1,747 |
|
Stock-based compensation |
3,451 |
|
|
4,245 |
|
Intangible assets |
8,575 |
|
|
7,198 |
|
|
105,180 |
|
|
103,371 |
|
Less valuation allowance |
(100,284 |
) |
|
(98,535 |
) |
|
4,896 |
|
|
4,836 |
|
Deferred tax liabilities: |
|
|
|
Fixed assets |
(2,202 |
) |
|
(2,322 |
) |
Unremitted foreign earnings |
(2,909 |
) |
|
(2,628 |
) |
Net deferred tax liabilities |
$ |
(215 |
) |
|
$ |
(114 |
) |
|
| Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
The following table summarizes the changes to the unrecognized tax benefits during 2016, 2015 and 2014:
|
|
|
|
|
|
(in thousands) |
Balance as of December 31, 2013 |
$ |
5,462 |
|
Additions based on tax positions related to the current year |
3,158 |
|
Additions based on tax positions of prior years |
2,188 |
|
Balance as of December 31, 2014 |
10,808 |
|
Additions based on tax positions related to the current year |
2,585 |
|
Additions related to acquisition |
13,733 |
|
Decreases based on tax positions of prior year |
(1,073 |
) |
Balance as of December 31, 2015 |
$ |
26,053 |
|
Additions based on tax positions related to the current year |
2,025 |
|
Decreases based on tax positions of prior year |
(4,661 |
) |
Balance as of December 31, 2016 |
$ |
23,417 |
|
|