Income Taxes - Reconciliation of Expected Income Tax Benefit (Expense) (Details)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate Reconciliation:
Income tax benefit computed at federal statutory tax rate	34.00%	34.00%	34.00%
Impact of foreign rate differential	7.70%	0.00%	0.00%
State taxes, net of federal benefit	18.80%	5.60%	5.10%
NOL write off	14.40%	0.00%	0.00%
Stock option cancellations	49.60%	0.00%	0.00%
Transaction costs	33.60%	0.00%	0.00%
Contingent consideration	(15.70%)	(0.00%)	(0.00%)
General business credits and other credits	(25.00%)	1.80%	1.30%
Permanent differences	5.30%	2.40%	(1.30%)
Change in valuation allowance	(122.40%)	(43.80%)	(39.10%)
Total	0.30%	0.00%	0.00%

Effective Income Tax Rate Reconciliation Contingent Consideration, Percent

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Effective Income Tax Rate Reconciliation, NOL write-off, Percent

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Effective Income Tax Rate Reconciliation Permanent Differences

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Effective Income Tax Rate Reconciliation, Transaction Costs, Percent

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Publisher FASB
-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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