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SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
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Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS | SCHEDULE II Simpson Manufacturing Co., Inc. and Subsidiaries VALUATION AND QUALIFYING ACCOUNTS for the years ended December 31, 2019, 2018 and 2017
Column A | Column B |  | Column C |  | Column D |  | Column E
|  |  | Additions |  |  |  |
|  |  | Charged |  | Charged |  |  |  |
| Balance at |  | to Costs |  | to Other |  |  |  | Balance
(in thousands) | Beginning |  | and |  | Accounts — |  |  |  | at End
Classification | of Year |  | Expenses |  | Write-offs |  | Deductions |  | of Year
Year to date December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 1,364 |  |  | $ | 977 |  |  | $ | 406 |  |  | $ | — |  |  | $ | 1,935 |
Allowance for sales discounts | 3,317 |  |  | 1,431 |  |  | — |  |  | — |  |  | 4,748 |
Allowance for deferred tax assets | 13,254 |  |  | 1,423 |  |  |  |  |  | 3,060 |  |  | 11,617 |
Year to date December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | 996 |  |  | 569 |  |  | 201 |  |  | — |  |  | 1,364 |
Allowance for sales discounts | 2,956 |  |  | 361 |  |  | — |  |  | — |  |  | 3,317 |
Allowance for deferred tax assets | 11,114 |  |  | 2,477 |  |  | — |  |  | 337 |  |  | 13,254 |
Year to date December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | 895 |  |  | 66 |  |  | — |  |  | (35 | ) |  | 996 |
Allowance for sales discounts | 3,050 |  |  | (94 | ) |  | — |  |  | — |  |  | 2,956 |
Allowance for deferred tax assets | 6,868 |  |  | 5,765 |  |  | — |  |  | 1,519 |  |  | 11,114 |

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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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- References No definition available. + Details
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