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EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Outside of US. |  |  |
Defined Contribution Plan |  |  |
Company contribution amount | $ 0.9 | $ 0.6 |
SMART Plan |  |  |
Defined Contribution Plan |  |  |
Total assets in the trust | 27.4 |  | $ 28.0
Company contribution amount | $ 3.3 | $ 2.2 |

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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