Annual report pursuant to Section 13 and 15(d)

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail)

v3.20.4
Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:    
Net operating losses $ 237,010 $ 162,436
Stock-based compensation 20,672 17,573
Capitalized expenses 12,590 14,129
License fees 8,159 6,870
Operating lease liabilities 4,251 4,325
Legal fees 2,136 1,683
Tax credits 1,580 0
Other 5,360 3,329
Total deferred tax assets 291,758 210,345
Valuation allowance (287,349) (205,249)
Total deferred tax assets 4,409 5,096
Deferred tax liabilities:    
Operating lease assets (3,541) (3,921)
Other (868) (1,175)
Total deferred tax liabilities (4,409) (5,096)
Net deferred tax assets (liabilities) $ 0 $ 0