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Income Taxes - Components of the Company's Deferred Income Tax Assets (Liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:        
Net operating loss carryforwards $ 112,516 $ 126,333    
Accrued product returns and rebates 23,300 19,506    
Accrued compensation and stock based compensation 15,422 17,802    
Capitalized research and development 13,926 0    
Operating lease liability 10,821 12,146    
Investment 4,946 7,819    
Charitable contributions 3,620 7,730    
Research and development credit carryforwards 3,070 4,448    
Convertible bond hedge 1,449 6,910    
Interest limitation 45 7,860    
Other 5,356 4,256    
Total deferred tax assets 194,471 214,810    
Less: valuation allowance (59,598) (70,529) $ (582) $ (11)
Total deferred tax asset, net of valuation allowance 134,873 144,281    
Deferred tax liabilities:        
Amortization of intangibles (162,654) (199,240)    
Debt discount on 2023 Notes (133) (5,671)    
Patent infringement legal costs (10,968) (10,689)    
Operating lease assets (7,338) (9,099)    
Other (3,589) (4,937)    
Total deferred tax liabilities (184,682) (229,636)    
Net deferred tax liabilities $ (49,809) $ (85,355)