Annual report pursuant to Section 13 and 15(d)

Income Taxes - Significant Components of Company's Deferred Taxes Consist (Detail)

v3.20.1
Income Taxes - Significant Components of Company's Deferred Taxes Consist (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Deferred tax assets:    
Net operating loss carryforwards $ 125,657 $ 93,823
Amortization of license fees 17,077 12,552
Amortization of in-process R&D 449 420
Stock compensation 13,280 10,404
Lease liability 7,454 0
Accruals and reserves 1,810 2,267
Tax credits 12,716 10,207
Startup costs 58 55
Unrealized gain/loss on investments 716 805
Business interest expense deduction limit 0 2,535
Total deferred tax assets 179,217 133,068
Less: valuation allowance (168,223) (132,114)
Net deferred tax assets 10,994 954
Deferred tax liabilities:    
Unrealized gain/loss on investment 0 0
Right of use asset (6,280) 0
Gain / loss on Deconsolidation of Caelum (1,835) 0
Basis in subsidiary (2,879) (954)
Total deferred tax assets, net $ 0 $ 0