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SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (Details) - SEC Schedule, 12-09, Allowance, Credit Loss [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Beginning Balance | $ 19,658 | $ 16,666 | $ 14,706
SEC Schedule, 12-09, Valuation Allowances and Reserves, Adoption of ASC 326 | (3,330) |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 17,536 | 15,145 | 13,606
SEC Schedule, 12-09, Valuation Allowances and Reserves, Addition, Recovery | (13,779) | (12,153) | (11,646)
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Ending Balance | $ 20,085 | $ 19,658 | $ 16,666

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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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- Definition Amount of increase in valuation and qualifying accounts and reserves from recovery of amount previously written off or reestablishment of reserve previously utilized. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column C)(2)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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