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Income Taxes - Deferred tax liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Net operating losses and credits $ 55,813 $ 61,962    
Depreciation 0 5,701    
Operating leases 19,288 24,317    
Amortization 2,316 2,377    
Stock-based compensation 8,074 7,773    
Deferred compensation 30,105 27,754    
Deferred revenue 10,997 11,341    
Revaluation of equity investments and licenses 3,083 4,492    
Inventory 5,405 5,060    
Accrued liabilities and reserves 6,675 10,639    
Unrealized foreign currency gain/loss 2,266 0    
Other 6,713 3,483    
Total deferred tax assets 150,735 164,899    
Valuation allowance (58,834) (60,101) $ (51,221) $ (53,893)
Deferred tax assets, net of valuation allowance 91,901 104,798    
Capitalized software (24,357) (23,748)    
Operating leases (19,251) (24,314)    
Indefinite-lived intangibles (15,534) (14,973)    
Unrealized foreign currency gain/loss 0 (10,819)    
Depreciation (3,481) 0    
Deferred tax liability on foreign earnings (17,283) (17,277)    
Total deferred tax liabilities (79,906) (91,131)    
Net deferred tax assets $ 11,995 $ 13,667