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Employee Benefit Plans | 12 Months Ended
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Dec. 31, 2021
Defined Contribution Plan [Abstract] |
Employee Benefit Plans | 14.EMPLOYEE BENEFIT PLANS We have defined contribution plans covering all U.S. full-time adult employees and certain of our foreign employees. Our contributions to these plans are discretionary in certain countries, including the U.S. In September 2019, we ceased discretionary contributions to certain of our defined contribution plans and subsequently reinstated those contributions in May 2021. Total expense for contributions made to these plans for the years ended December 31, 2021, 2020 and 2019 was $6.5 million, $3.9 million and $6.6 million, respectively. ​

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- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 712 -URI http://asc.fasb.org/topic&trid=2197446 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -URI http://asc.fasb.org/topic&trid=2127225 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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