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SCHEDULE II - VALUATION ACCOUNTS | 12 Months Ended
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Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SCHEDULE II - VALUATION ACCOUNTS | WILLIS LEASE FINANCE CORPORATION AND SUBSIDIARIES SCHEDULE II — VALUATION ACCOUNTS (In thousands)
| Balance at Beginning of Period |  | Additions Charged (Credited) to Expense |  | Net (Deductions) Recoveries |  | Balance at End of Period
Year Ended December 31, 2019 |  |  |  |  |  |  |
Accounts receivable, allowance for doubtful accounts | $ | 2,559 |  |  | $ | (829) |  |  | $ | — |  |  | $ | 1,730 |
Deferred tax valuation allowance | $ | 652 |  |  | $ | (499) |  |  | $ | — |  |  | $ | 153 |
Year Ended December 31, 2020 |  |  |  |  |  |  |
Accounts receivable, allowance for doubtful accounts | $ | 1,730 |  |  | $ | 5 |  |  | $ | (363) |  |  | $ | 1,372 |
Deferred tax valuation allowance | $ | 153 |  |  | $ | 315 |  |  | $ | — |  |  | $ | 468 |
Deductions in allowance for doubtful accounts represent uncollectible accounts written off, net of recoveries.

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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=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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