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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Pre-Tax Income (Loss) by Jurisdiction
In 2023, 2022 and 2021, pre-tax income (loss) was attributed to the following jurisdictions: 
 Year Ended December 31,
(In thousands)202320222021
Domestic operations$(95,876)$(69,058)$(38,024)
Foreign operations3,622 80,451 54,104 
Total pre-tax income (loss)$(92,254)$11,393 $16,080 
Provision for Income Taxes
The provision for income taxes charged to operations was as follows: 
 Year Ended December 31,
(In thousands)202320222021
Current tax expense:
U.S. federal$23 $573 $
State and local44 73 75 
Foreign7,193 8,523 12,386 
Total current7,260 9,169 12,463 
Deferred tax (benefit) expense:
U.S. federal(813)230 584 
State and local(126)36 90 
Foreign(337)1,551 (2,358)
Total deferred(1,276)1,817 (1,684)
Total provision for income taxes$5,984 $10,986 $10,779 
Net Deferred Tax Assets
Net deferred tax assets were comprised of the following: 

December 31,
(In thousands)20232022
Deferred tax assets:
Accrued liabilities$3,958 $— 
Accounts receivable— 5,657 
Amortization of intangible assets9,999 5,977 
Capitalized inventory costs3,369 5,060 
Capitalized research & development costs8,035 4,632 
Depreciation4,058 5,067 
Income tax credits19,615 17,234 
Inventory reserves2,154 2,258 
Net operating losses12,053 3,770 
Operating lease obligations4,112 4,212 
Stock-based compensation4,453 4,288 
Total deferred tax assets71,806 58,155 
Deferred tax liabilities:
Accrued liabilities— (5,273)
Accounts receivable(20)— 
Right of use assets(4,385)(4,407)
Other(2,920)(361)
Total deferred tax liabilities(7,325)(10,041)
Net deferred tax assets before valuation allowance64,481 48,114 
Less: Valuation allowance(59,686)(44,596)
Net deferred tax assets$4,795 $3,518 
Reconciliation of Tax Provision at Statutory U.S. Rate to Provision for Income Taxes
The provision for income taxes differs from the amount of income tax determined by applying the applicable U.S. statutory federal income tax rate to pre-tax income from operations as a result of the following: 
 Year Ended December 31,
(In thousands)202320222021
Tax provision at statutory U.S. rate$(19,373)$2,392 $3,377 
Increase (decrease) in tax provision resulting from:
Distribution of previously taxed foreign earnings and profits(9,450)(16,776)— 
Federal research and development credits(1,043)(715)(1,391)
Foreign permanent benefit(1,426)(1,620)(1,137)
Foreign tax rate differential21,794 15,133 (2,647)
Foreign undistributed earnings, net of credits7,198 6,486 6,902 
Foreign participation exemption(12,571)— — 
Goodwill impairment5,383 — — 
Liquidation of Cayman subsidiary— — 745 
Non-deductible items594 601 1,198 
Non-territorial income(945)(2,323)(2,993)
Provision to return(19)(435)(533)
Sale of Argentina subsidiary— — 2,084 
Sale of intangible asset— (3,385)— 
State and local taxes, net(2,629)(2,408)(1,435)
Stock-based compensation980 693 (616)
Tax rate change1,648 (640)— 
Valuation allowance15,090 12,058 4,632 
Withholding tax1,229 2,188 2,333 
Other(476)(263)260 
Tax provision$5,984 $10,986 $10,779 
Changes to Gross Unrecognized Tax Benefits
Changes to our gross unrecognized tax benefits were as follows: 
Year Ended December 31,
(In thousands)202320222021
Balance at beginning of period$3,150 $3,001 $3,020 
Additions as a result of tax positions taken during the current year165 149 226 
Foreign currency translation— — (13)
Settlements— — (232)
Balance at end of period$3,315 $3,150 $3,001