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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CECL |  |  |
VALUATION AND QUALIFYING ACCOUNTS |  |  |
Balance at Beginning Of Period | $ 3,626 | $ 3,541 | $ 3,161
Charged to Costs and Expenses | 865 | 782 | 923
Charged to Other Accounts | 1,647 | 0 | 0
Deductions from Reserve | (220) | (697) | (543)
Balance at End of Period | 5,918 | 3,626 | 3,541
Deferred tax valuation allowance |  |  |
VALUATION AND QUALIFYING ACCOUNTS |  |  |
Balance at Beginning Of Period | 23,320 | 11,189 | 5,414
Charged to Costs and Expenses | 3,085 | 12,058 | 4,230
Charged to Other Accounts | 700 | 1,508 | 2,604
Deductions from Reserve | (4,000) | (1,435) | (1,059)
Balance at End of Period | $ 23,105 | $ 23,320 | $ 11,189

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: 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(Column B)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 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(Column E)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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