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INCOME TAX PROVISION (income tax provision) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income (loss) before income taxes |  |  |  |  |
U.S. |  | $ 62,361 | $ 7,130 | $ (191,843) |
Foreign |  | 31,442 | 19,673 | (23,897) |
Income (loss) before income taxes |  | 93,803 | 26,803 | (215,740) |
Current tax provision: |  |  |  |  |
Federal |  | (61) | 17,643 | 36,967 |
State |  | 2,389 | 4,502 | 7,400 |
Foreign |  | 10,945 | 4,779 | 4,850 |
Total current tax provision |  | 13,273 | 26,924 | 49,217 |
Deferred tax provision: |  |  |  |  |
Federal |  | 15,889 | (4,480) | (35,154) |
State |  | 1,958 | (1,232) | (8,239) |
Foreign |  | (89) | 256 | 2,215 |
Total deferred tax provision |  | 17,758 | (5,456) | (41,178) |
Income tax provision |  | $ 31,031 | $ 21,468 | $ 8,039 |
Reconciliation of effective tax rate to U.S. statutory tax rate |  |  |  |  |
Income tax at federal statutory rate |  | 21.00% | 21.00% | 21.00% |
Goodwill impairment charges (Note 8) |  | 0.00% | 46.80% | (25.60%) |
Tax on repatriation of foreign earnings |  | 4.90% | 0.00% | 0.00% |
State income tax expense, net of federal income tax benefit |  | 2.40% | 2.10% | 4.70% |
Foreign tax rate differences |  | 1.70% | 4.30% | 1.10% |
Non-deductible executive compensation |  | 1.70% | 2.20% | (0.60%) |
Non-deductible acquisition costs |  | 1.50% | 0.00% | 0.00% |
Tax impact of share-based compensation |  | 0.90% | 8.50% | (1.00%) |
Payables and receivables for prior year tax returns |  | 0.20% | 3.20% | 0.20% |
Change in valuation allowances |  | 0.10% | 0.90% | (3.90%) | [1]
Research and development tax credit |  | (0.90%) | (3.70%) | 0.50% |
Change in unrecognized tax benefits, including interest and penalties |  | (0.60%) | (3.30%) | (0.20%) |
Non-taxable income from employee life insurance policies |  | (0.30%) | (1.10%) | 0.10% |
Return to provision adjustments |  | 0.00% | (2.60%) | 0.30% |
Other |  | 0.50% | 1.80% | (0.30%) |
Effective tax rate |  | 33.10% | 80.10% | (3.70%) |
Expense from change in valuation allowance | $ 8,432 | $ 65 | $ 244 | $ 8,336 |
[1] | During the quarter ended September 30, 2019, we recorded asset impairment charges related to certain intangible assets located in Australia (Note 8). As a result, we placed a full valuation allowance on the intangible-related deferred tax asset of $8,432, as we do not expect that we will realize the benefit of this deferred tax asset.

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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -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 The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. + References Reference 1: 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)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: 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.Fact.3) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 + Details
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- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. + References Reference 1: 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)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: 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.Fact.3) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 + Details
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