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RETIREMENT BENEFIT PLANS (Narrative) (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Gain (loss) recognized within accumulated other comprehensive loss |  | $ 7,000,000 | $ 4,600,000 |
Accumulated benefit obligation |  | 60,300,000 | 61,500,000 |
Benefit plans, assets |  | 39,914,000 | 37,825,000 | $ 30,770,000
Plan assets expected to be returned next twelve months |  | 0 |  |
Contributions expected to be paid to plan |  | 2,300,000 |  |
Total contributions made |  | 8,800,000 | 6,700,000 | $ 8,600,000
Defer payment and taxation, base salary, percentage (up to) | 75.00% |  |  |
Defer payment and taxation, bonus and other eligible cash compensation, percentage (up to) | 100.00% |  |  |
Deferred compensation plan, fair value of assets |  | 3,800,000 | $ 2,000,000 |
France and Germany |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Benefit plans, assets |  | $ 0 |  |

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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