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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts |
| 2020 |  | 2019 |  | 2018
| (In thousands)
Allowance for doubtful accounts: |
Balance at beginning of year | $ | 4,860 |  |  | $ | 5,369 |  |  | $ | 5,540 |
Additions— |  |  |  |  |
Charged to costs and expenses | 1,172 |  |  | 2,015 |  |  | 375 |
Deductions— |  |  |  |  |
Deductions from reserves, net (1)(2) | 688 |  |  | 2,524 |  |  | 546 |
Balance at end of year | $ | 5,344 |  |  | $ | 4,860 |  |  | $ | 5,369 |
Income tax valuation allowance: |  |  |  |  |
Balance at beginning of year | $ | 5,936 |  |  | $ | 5,039 |  |  | $ | 4,559 |
Additions— |  |  |  |  |
Charged to costs and expenses (3) | 2,854 |  |  | 1,138 |  |  | 859 |
Deductions— |  |  |  |  |
Deductions from reserves (3) | 1,602 |  |  | 241 |  |  | 379 |
Balance at end of year | $ | 7,188 |  |  | $ | 5,936 |  |  | $ | 5,039 |
(1)Bad debts written off, net of recoveries. (2)Activity for 2020, 2019 and 2018 includes currency translation losses of $(107), $(1,058) and $(291), respectively. (3)Activity for 2020, 2019 and 2018 includes currency translation (losses) gains of $(41), $104 and $(367), respectively.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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