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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
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Dec. 31, 2019
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS |
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS | RELIANCE STEEL & ALUMINUM CO. SCHEDULE II—VALUATION AND QUALIFYING ACCOUNT S (in millions) ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Additions | ​ | ​ | ​ | ​ | Amounts | ​ | ​ | ​
​ | ​ | Balance at | ​ | Charged to | ​ | ​ | ​ | ​ | Charged to | ​ | Balance at
​ | ​ | Beginning | ​ | Costs and | ​ | ​ | ​ | ​ | Other | ​ | End of
​ |  | of Year |  | Expenses |  | Deductions(1) | ​ | Accounts |  | Year
Year Ended December 31, 2017 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for doubtful accounts | ​ | $ | 15.3 | ​ | $ | 6.7 | ​ | $ | 6.5 | ​ | $ | — | ​ | $ | 15.5
Year Ended December 31, 2018 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for doubtful accounts | ​ | $ | 15.5 | ​ | $ | 7.4 | ​ | $ | 4.4 | ​ | $ | 0.3 | ​ | $ | 18.8
Year Ended December 31, 2019 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for doubtful accounts | ​ | $ | 18.8 | ​ | $ | 3.4 | ​ | $ | 4.4 | ​ | $ | — | ​ | $ | 17.8
(1) | Uncollectible accounts written off.
​ See accompanying report of independent registered public accounting firm.

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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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