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Income Tax (Tables) | 12 Months Ended
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Dec. 31, 2021
Income Tax |
Components of income (loss) before income tax (benefit) provision | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
(in thousands) |  | 2021 |  | 2020 |  | 2019
Domestic | ​ | $ | 16,499 | ​ | $ | 10,017 | ​ | $ | 28,690
Foreign | ​ |  | 9,322 | ​ |  | 7,292 | ​ |  | 6,670
Income before income taxes | ​ | $ | 25,821 | ​ | $ | 17,309 | ​ | $ | 35,360
Schedule of income tax provision (benefit) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
(in thousands) |  | 2021 |  | 2020 |  | 2019
Current |  | ​ |  |  | ​ |  |  | ​ |
Federal | ​ | $ | 821 | ​ | $ | 176 | ​ | $ | 3,524
State | ​ |  | 1,508 | ​ |  | 636 | ​ |  | 4,776
Foreign | ​ |  | 1,999 | ​ |  | 1,181 | ​ |  | 1,756
Total current tax provision | ​ | $ | 4,328 | ​ | $ | 1,993 | ​ | $ | 10,056
Deferred | ​ |  |  | ​ |  |  | ​ |  |
Federal | ​ | $ | (5,545) | ​ | $ | (3,608) | ​ | $ | 1,830
State | ​ |  | (2,241) | ​ |  | (1,542) | ​ |  | 151
Foreign | ​ |  | (29) | ​ |  | 13 | ​ |  | 16
Total deferred tax (benefit) provision | ​ | $ | (7,815) | ​ | $ | (5,137) | ​ | $ | 1,997
Income tax (benefit) provision | ​ | $ | (3,487) | ​ | $ | (3,144) | ​ | $ | 12,053
Schedule of reconciliation of the statutory U.S. income tax rate to the effective income tax rate | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, |
​ |  | 2021 |  | 2020 |  | 2019 |
Statutory federal tax rate |  | 21.0 | % | 21.0 | % | 21.0 | %
State taxes |  | (3.3) | ​ | (7.5) | ​ | 11.1 | ​
Tax credits |  | (3.9) | ​ | (7.3) | ​ | (2.2) | ​
Foreign taxes |  | — | ​ | (1.8) | ​ | 0.7 | ​
Non‑deductible items and other |  | (0.6) | ​ | (2.4) | ​ | 1.1 | ​
Change in valuation allowance |  | — | ​ | 2.3 | ​ | — | ​
Change in statutory rates |  | — | ​ | — | ​ | — | ​
Changes in tax reserves |  | 1.9 | ​ | 8.6 | ​ | 0.4 | ​
Provision to return adjustment |  | 0.5 | ​ | (13.5) | ​ | — | ​
Transaction costs | ​ | 18.9 | ​ | — | ​ | — | ​
Global Intangible Low Tax Income |  | 0.7 | ​ | 1.1 | ​ | 1.9 | ​
Non-deductible officers' compensation | ​ | 47.8 | ​ | — | ​ | — | ​
Non‑cash compensation |  | (96.5) | ​ | (18.7) | ​ | 0.1 | ​
Effective tax rate |  | (13.5) | % | (18.2) | % | 34.1 | %
Components of deferred tax assets and liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31,
(in thousands) |  | 2021 |  | 2020
Deferred tax assets: |  | ​ |  |  | ​ |
Allowance for doubtful accounts | ​ | $ | 1,454 | ​ | $ | 1,819
Accrued expenses and other | ​ |  | 6,025 | ​ |  | 4,464
Stock compensation | ​ | ​ | 2,667 | ​ | ​ | 843
Net operating losses | ​ |  | 8,120 | ​ |  | 1,298
Gross deferred tax assets | ​ |  | 18,266 | ​ |  | 8,424
Valuation allowance | ​ |  | (482) | ​ |  | (484)
Net deferred tax assets | ​ | $ | 17,784 | ​ | $ | 7,940
Deferred tax liabilities: | ​ |  |  | ​ |  |
Purchased intangibles | ​ | $ | (44,836) | ​ | $ | (35,561)
Depreciation and amortization | ​ |  | (3,195) | ​ |  | (3,715)
Total deferred tax liabilities | ​ |  | (48,031) | ​ |  | (39,276)
Net deferred tax liability | ​ | $ | (30,247) | ​ | $ | (31,336)
Schedule of unrecognized tax benefits | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
(in thousands) |  | 2021 |  | 2020
Beginning balance | ​ | $ | 1,879 | ​ | $ | 595
Increase related to tax positions of prior years | ​ |  | 227 | ​ |  | —
Increase related to tax positions of the current year | ​ |  | 257 | ​ |  | 1,496
Decrease related to tax positions of prior years | ​ |  | — | ​ |  | (212)
Decrease due to lapse in statutes of limitations | ​ |  | — | ​ |  | —
Ending balance | ​ | $ | 2,363 | ​ | $ | 1,879

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319 + Details
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