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RESTRUCTURING AND FACILITIES CONSOLIDATION INITIATIVES - Restructuring Initiatives (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Restructuring Reserve [Roll Forward] |  |  |
Initiatives charged to expense | $ 10,833 | $ 11,653 | $ 16,235
2022 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 0 |  |
Initiatives charged to expense | 10,197 |  |
Net transfer to operating lease liability accounts | 1,611 |  |
Cash payments | (6,532) |  |
Balance at the end of the period | 2,054 | 0 |
2020 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 1,955 | 6,493 |
Initiatives charged to expense | 34 | 5,360 |
Net transfer to operating lease liability accounts | (57) | (670) |
Cash payments | (1,876) | (9,228) |
Balance at the end of the period | 56 | 1,955 | 6,493
2019 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 1,594 | 939 |
Initiatives charged to expense | 658 | 9,006 |
Restructuring Reserve, Translation and Other Adjustment |  | (2,043) |
Net transfer to operating lease liability accounts | 0 | (1,325) |
Cash payments | (1,004) | (4,983) |
Balance at the end of the period | 1,248 | 1,594 | 939
Severance | 2022 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 0 |  |
Initiatives charged to expense | 5,287 |  |
Net transfer to operating lease liability accounts | 0 |  |
Cash payments | (4,123) |  |
Balance at the end of the period | 1,164 | 0 |
Severance | 2020 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 1,895 | 5,237 |
Initiatives charged to expense | 0 | 4,618 |
Net transfer to operating lease liability accounts | (57) | 0 |
Cash payments | (1,782) | (7,960) |
Balance at the end of the period | 56 | 1,895 | 5,237
Severance | 2019 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 0 | 173 |
Initiatives charged to expense | 0 | 0 |
Restructuring Reserve, Translation and Other Adjustment |  | 0 |
Net transfer to operating lease liability accounts | 0 | 0 |
Cash payments | 0 | (173) |
Balance at the end of the period | 0 | 0 | 173
Variable and other facilities-related costs | 2022 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 0 |  |
Initiatives charged to expense | 3,299 |  |
Net transfer to operating lease liability accounts | 0 |  |
Cash payments | (2,409) |  |
Balance at the end of the period | 890 | 0 |
Variable and other facilities-related costs | 2020 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Initiatives charged to expense |  | 100 |
Accelerated amortization of lease assets due to cease-use | 2022 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 0 |  |
Initiatives charged to expense | 1,611 |  |
Net transfer to operating lease liability accounts | 1,611 |  |
Cash payments | 0 |  |
Balance at the end of the period | 0 | 0 |
Facilities |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 1,600 |  |
Balance at the end of the period | 2,000 | 1,600 |
Facilities | 2020 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 60 | 1,256 |
Initiatives charged to expense | 34 | 742 |
Net transfer to operating lease liability accounts | 0 | (670) |
Cash payments | (94) | (1,268) |
Balance at the end of the period | 0 | 60 | 1,256
Facilities | 2019 Restructuring Initiative |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at the beginning of the period | 1,594 | 766 |
Initiatives charged to expense | 658 | 9,006 |
Restructuring Reserve, Translation and Other Adjustment |  | (2,043) |
Net transfer to operating lease liability accounts | 0 | (1,325) |
Cash payments | (1,004) | (4,810) |
Balance at the end of the period | $ 1,248 | $ 1,594 | $ 766

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(2)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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