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Consolidated Balance Sheets (Parenthetical) $ in Millions | Sep. 27, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares
--- | --- | ---
Trade accounts receivable, reserve allowances | $ | $ 11.8 | $ 14.3
Preferred Stock, par value (in dollars per share) | $ / shares | $ 0.10 | $ 0.10
Preferred Stock, shares authorized | 5,000,000 | 5,000,000
Preferred Stock, shares issued | 0 | 0
Preferred Stock, shares outstanding | 0 | 0
Class A |  |
Common Stock, par value (in dollars per share) | $ / shares | $ 0.10 | $ 0.10
Common Stock, shares authorized | 120,000,000 | 120,000,000
Common Stock, votes per share (Number of votes) | 1 | 1
Common Stock, issued shares | 27,445,480 | 27,586,416
Common Stock, outstanding shares | 27,445,480 | 27,586,416
Class B |  |
Common Stock, par value (in dollars per share) | $ / shares | $ 0.10 | $ 0.10
Common Stock, shares authorized | 25,000,000 | 25,000,000
Common Stock, votes per share (Number of votes) | 10 | 10
Common Stock, issued shares | 6,209,290 | 6,279,290
Common Stock, outstanding shares | 6,209,290 | 6,279,290

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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 + Details
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- Definition There is no established public trading market for our Class B Common Stock, which is held exclusively by members of the Horne family. The principal holders of such stock are subject to restrictions on transfer with respect to their shares. Each share of our Class B Common Stock (10 votes per share) is convertible into one share of Class A Common Stock (1 vote per share). + References No definition available. + Details
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