Income Taxes Income Tax (Tables)
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12 Months Ended |
Dec. 31, 2017 |
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| Income Tax Disclosure [Abstract] |
|
| Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
The domestic and international components of income (loss) before income tax provision (benefit) are presented as follows:
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Years Ended December 31, |
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2017 |
|
2016 |
|
2015 |
|
(in thousands) |
Domestic |
$ |
42,580 |
|
|
$ |
75,778 |
|
|
$ |
(44,094 |
) |
Foreign |
(76,578 |
) |
|
(12,088 |
) |
|
1,188 |
|
Income (loss) before income taxes |
$ |
(33,998 |
) |
|
$ |
63,690 |
|
|
$ |
(42,906 |
) |
|
| Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
The income tax provision (benefit) consists of the following:
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Years Ended December 31, |
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2017 |
|
2016 |
|
2015 |
|
(in thousands) |
Current: |
|
|
|
|
|
Federal |
$ |
13,470 |
|
|
$ |
1,216 |
|
|
$ |
— |
|
State |
26 |
|
|
(11 |
) |
|
16 |
|
Foreign |
1,784 |
|
|
1,092 |
|
|
942 |
|
Total current |
15,280 |
|
|
2,297 |
|
|
958 |
|
Deferred: |
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|
|
|
|
Federal |
19,451 |
|
|
17,492 |
|
|
(13,759 |
) |
State |
(4,668 |
) |
|
(8,271 |
) |
|
(1,034 |
) |
Foreign |
(3,697 |
) |
|
(2,459 |
) |
|
126 |
|
Valuation allowance release due to acquisition |
— |
|
|
— |
|
|
(1,757 |
) |
Change in valuation allowance |
(51,177 |
) |
|
(6,661 |
) |
|
14,891 |
|
Total deferred |
(40,091 |
) |
|
101 |
|
|
(1,533 |
) |
Total income tax provision (benefit) |
$ |
(24,811 |
) |
|
$ |
2,398 |
|
|
$ |
(575 |
) |
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| Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
The actual income tax provision (benefit) differs from the amount computed using the federal statutory rate as follows:
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Years Ended December 31, |
|
2017 |
|
2016 |
|
2015 |
|
(in thousands) |
Provision (benefit) at statutory rate |
$ |
(11,899 |
) |
|
$ |
22,294 |
|
|
$ |
(14,588 |
) |
State income taxes (net of federal benefit) |
17 |
|
|
(13 |
) |
|
275 |
|
Research and development credits |
(8,153 |
) |
|
(9,076 |
) |
|
(2,083 |
) |
Foreign rate differential |
23,666 |
|
|
2,888 |
|
|
(62 |
) |
Stock compensation |
(5,713 |
) |
|
(5,756 |
) |
|
549 |
|
Foreign deemed dividend |
— |
|
|
51 |
|
|
279 |
|
Transaction costs |
553 |
|
|
749 |
|
|
1,329 |
|
Uncertain tax positions |
1,993 |
|
|
(1,204 |
) |
|
600 |
|
Foreign tax credits |
(5 |
) |
|
(72 |
) |
|
(144 |
) |
Permanent and other |
813 |
|
|
(802 |
) |
|
96 |
|
Foreign unremitted earnings |
(1,368 |
) |
|
— |
|
|
— |
|
Tax Act |
25,205 |
|
|
— |
|
|
— |
|
Other tax rate changes |
1,257 |
|
|
— |
|
|
— |
|
Valuation allowance release due to acquisition |
— |
|
|
— |
|
|
(1,757 |
) |
Valuation allowance |
(51,177 |
) |
|
(6,661 |
) |
|
14,931 |
|
Total income tax provision (benefit) |
$ |
(24,811 |
) |
|
$ |
2,398 |
|
|
$ |
(575 |
) |
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| Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
The components of the deferred income tax assets are as follows:
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December 31, |
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2017 |
|
2016 |
|
(in thousands) |
Deferred tax assets: |
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|
Net operating loss carryforwards |
$ |
77,355 |
|
|
$ |
19,524 |
|
Research and development credits |
69,668 |
|
|
58,170 |
|
Accrued expenses and other |
10,506 |
|
|
13,387 |
|
Accrued compensation |
2,444 |
|
|
2,073 |
|
Stock-based compensation |
2,659 |
|
|
3,451 |
|
Intangible assets |
— |
|
|
8,575 |
|
|
162,632 |
|
|
105,180 |
|
Less valuation allowance |
(84,560 |
) |
|
(100,284 |
) |
|
78,072 |
|
|
4,896 |
|
Deferred tax liabilities: |
|
|
|
Fixed assets |
(1,777 |
) |
|
(2,202 |
) |
Intangible assets |
(35,981 |
) |
|
— |
|
Unremitted foreign earnings |
(436 |
) |
|
(2,909 |
) |
Net deferred tax assets (liabilities) |
$ |
39,878 |
|
|
$ |
(215 |
) |
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| Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
The following table summarizes the changes to the unrecognized tax benefits during 2017, 2016 and 2015:
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|
(in thousands) |
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 |
|
Additions based on tax positions related to the current year |
3,037 |
|
Additions related to acquisitions |
37,090 |
|
Decreases based on tax positions of prior year |
(458 |
) |
Balance as of December 31, 2017 |
$ |
63,086 |
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