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PROVISION FOR INCOME TAXES | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure Abstract |
PROVISION FOR INCOME TAXES | 11. PROVISION FOR INCOME TAXES: Income Taxes The Company accounts for income taxes under the provisions of ASC 740, Income Taxes. Under the provisions of ASC 740, deferred tax assets and liabilities are recognized based on the differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, utilizing the tax rates that are expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. U.S. and foreign components of income (loss) before income taxes were:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
(In thousands) |  | 2022 |  | 2021 |  | 2020
U.S. operations | ​ | $ | 17,250 | ​ | $ | 241 | ​ | $ | (6,252)
Foreign operations | ​ |  | 166,176 | ​ |  | 175,894 | ​ |  | 81,503
Total income before income taxes | ​ | $ | 183,426 | ​ | $ | 176,135 | ​ | $ | 75,251
​ The components of the provision for income taxes are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
(In thousands) |  | 2022 |  | 2021 |  | 2020
Current provision (benefit): |  | ​ |  |  | ​ |  |  | ​ |
Federal | ​ | $ | 19,740 | ​ | $ | 23,648 | ​ | $ | 2,788
State | ​ |  | 2 | ​ |  | 2 | ​ |  | (181)
Foreign | ​ |  | 1,079 | ​ |  | 1,608 | ​ |  | 1,677
​ | ​ |  | 20,821 | ​ |  | 25,258 | ​ |  | 4,284
Deferred provision (benefit): | ​ |  |  | ​ |  |  | ​ |  |
Federal | ​ |  | (7,962) | ​ |  | (11,449) | ​ |  | 348
State | ​ |  | — | ​ |  | — | ​ |  | —
Foreign | ​ |  | (284) | ​ |  | (2,087) | ​ |  | (557)
​ | ​ |  | (8,246) | ​ |  | (13,536) | ​ |  | (209)
Total | ​ | $ | 12,575 | ​ | $ | 11,722 | ​ | $ | 4,075
​ The provision for income taxes differs from the amount that would result by applying the applicable federal income tax rate to income before income taxes, as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
​ | ​ | 2022 | ​ | 2021 | ​ | 2020
Provision (benefit) computed at Federal statutory rate |  | 21.0 | % | ​ | 21.0 | % | ​ | 21.0 | %
Business tax credits |  | (3.7) |  | ​ | (3.6) |  | ​ | (7.4) | ​
Stock-based compensation |  | (1.6) |  | ​ | (0.6) |  | ​ | (0.1) | ​
Foreign income taxed at different rate |  | (18.5) |  | ​ | (23.8) |  | ​ | (22.0) | ​
GILTI inclusion |  | 8.5 |  | ​ | 13.1 |  | ​ | 10.7 | ​
Valuation allowance |  | 1.3 |  | ​ | 1.3 |  | ​ | 2.6 | ​
Other |  | (0.1) |  | ​ | (0.7) |  | ​ | 0.6 | ​
Total |  | 6.9 | % | ​ | 6.7 | % | ​ | 5.4 | %
​ The Company’s effective tax rate is impacted by the geographic distribution of the Company’s world-wide earnings in lower-tax jurisdictions, federal research tax credits and the recognition of excess tax benefits related to share-based payments. These benefits were partially offset by foreign income subject to U.S. tax, known as global intangible low-taxed income. The Company’s primary jurisdiction where foreign earnings are derived is the Cayman Islands, which is a non-taxing jurisdiction. Income earned in other foreign jurisdictions was not material. The Company has not been granted any incentivized tax rates and does not operate under any tax holidays in any jurisdiction. The components of the net deferred income tax assets (liabilities) were as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31,
(In thousands) | ​ | 2022 | ​ | 2021
Deferred tax assets: |  | ​ |  |  | ​ |
Capitalized R&D costs | ​ | $ | 20,666 | ​ | $ | 13,226
Other reserves and accruals | ​ | ​ | 2,516 | ​ | ​ | 3,967
Tax credit carry-forwards | ​ |  | 26,154 | ​ |  | 23,647
Stock compensation | ​ |  | 1,559 | ​ |  | 1,278
Capital losses | ​ |  | 150 | ​ |  | 159
Net operating loss | ​ |  | 2,217 | ​ |  | 2,370
Other | ​ |  | 439 | ​ |  | 692
Valuation allowance | ​ |  | (29,036) | ​ |  | (27,085)
​ | ​ |  | 24,665 | ​ |  | 18,254
Deferred tax liabilities: | ​ |  |  | ​ |  |
Depreciation | ​ |  | (5,596) | ​ |  | (1,750)
​ | ​ |  | (5,596) | ​ |  | (1,750)
Net deferred tax assets | ​ | $ | 19,069 | ​ | $ | 16,504
​ In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities and projected future taxable income. In the event that the Company determines, based on available evidence and management judgment, that all or part of the net deferred tax assets will not be realized in the future, the Company would record a valuation allowance in the period the determination is made. In addition, the calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws. Resolution of these uncertainties in a manner inconsistent with the Company’s expectations could have a material impact on its results of operations and financial position. As of December 31, 2022, the Company continues to maintain a valuation allowance primarily as a result of its California, New Jersey and Canada deferred tax assets as the Company believes that it is not more likely than not that the deferred tax assets will be fully realized. As of December 31, 2022, the Company had utilized all of its federal research and development tax credit carryforwards. As of December 31, 2022, the Company had California research and development tax credit carryforwards of approximately $37.9 million (there is no expiration of research and development tax credit carryforwards for the state of California) and California net operating losses of $43.5 million which will begin to expire in 2032. As of December 31, 2022, the Company had Canadian scientific research and experimental development tax credit carryforwards of approximately $3.7 million and New Jersey research and experimental development tax credit carryforwards of approximately $0.8 million, which will start to expire in 2030 and 2026, respectively. The Tax Act signed into law on December 22, 2017, generally allows companies to repatriate accumulated foreign earnings without incurring additional U.S. federal taxes beginning after December 31, 2017. Local foreign and U.S. states taxes may still be incurred upon repatriation. The Company has not provided for U.S. taxes on its undistributed earnings of foreign subsidiaries. The determination of the future tax consequences of the remittance of these earnings is not practicable. Unrecognized Tax Benefits The Company applies the provisions of ASC 740-10, relating to accounting for uncertain income taxes. Reconciliation of the beginning and ending amount of unrecognized tax benefits:
​ | ​ | ​ | ​
​ |  | Unrecognized
(In thousands) | ​ | Tax Benefits
Unrecognized Tax Benefits Balance at January 1, 2020 | ​ | $ | 19,049
Gross Increase for Tax Positions of Current Year | ​ |  | 2,002
Gross Decrease for Tax Positions of Prior Years | ​ |  | —
Unrecognized Tax Benefits Balance at December 31, 2020 | ​ |  | 21,051
Gross Increase for Tax Positions of Current Year | ​ |  | 2,068
Gross Decrease for Tax Positions of Prior Years | ​ |  | (1,756)
Unrecognized Tax Benefits Balance at December 31, 2021 | ​ |  | 21,363
Gross Increase for Tax Positions of Current Year | ​ |  | 2,188
Gross Decrease for Tax Positions of Prior Years | ​ |  | (165)
Unrecognized Tax Benefits Balance at December 31, 2022 | ​ | $ | 23,386
​ The Company’s total unrecognized tax benefits as of December 31, 2022, 2021 and 2020 were $23.4 million, $21.4 million and $21.1 million, respectively. An income tax benefit of $11.7 million, net of valuation allowance adjustments, would be recorded if these unrecognized tax benefits are recognized. The Company cannot reasonably estimate the amount of the unrecognized tax benefit that could be adjusted in the next twelve months. The Company’s continuing practice is to recognize interest and/or penalties related to income tax matters in income tax expense. The Company had accrued interest and penalties of $1.2 million and $0.8 million as of December 31, 2022 and 2021, respectively, which have been recorded in long-term income taxes payable in the accompanying consolidated balance sheets. As of December 31, 2022, the Company has concluded all U.S. federal income tax matters for the years through 2012. However, due to tax attributes, the IRS may calculate tax adjustments for subsequent years for positions taken prior to 2012. The California Franchise Tax Board has started an audit for the Company’s tax years 2018 and 2019, it is currently ongoing.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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