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Restructuring Charges - Severance and Other Restructuring Charges Activity (Details) - Optimizing for Growth (formerly Capital Light Initiative) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Restructuring Reserve [Roll Forward] |  |
Liability at beginning of period | $ 5,324 |
Charges | 7,642 | $ 5,803
Payments/Utilization | (4,476) |
Liability at end of period | 8,490 |
Severance |  |
Restructuring Reserve [Roll Forward] |  |
Liability at beginning of period | 5,294 |
Charges | 4,342 |
Payments/Utilization | (1,405) |
Liability at end of period | 8,231 |
Other restructuring charges |  |
Restructuring Reserve [Roll Forward] |  |
Liability at beginning of period | 30 |
Charges | 3,300 |
Payments/Utilization | (3,071) |
Liability at end of period | $ 259 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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