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Schedule II - Valuation And Qualifying Accounts | 12 Months Ended
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Dec. 31, 2018
Valuation And Qualifying Accounts [Abstract] |
Schedule II Valuation And Qualifying Accounts | The Schedule II – Valuation and Qualifying Accounts schedule of Old Dominion Freight Line, Inc. is included below: Schedule II Old Dominion Freight Line, Inc. Valuation and Qualifying Accounts
(In thousands) |  | Allowance for Uncollectible Accounts (1) |
Year Ended December 31, |  | Balance at Beginning of Period |  |  | Charged to Expense |  |  | Deductions (2) |  |  | Balance at End of Period |
2016 |  | $ | 4,453 |  |  | $ | 1,427 |  |  | $ | 2,797 |  |  | $ | 3,083 |
2017 |  | $ | 3,083 |  |  | $ | 2,555 |  |  | $ | 2,150 |  |  | $ | 3,488 |
2018 |  | $ | 3,488 |  |  | $ | 3,846 |  |  | $ | 3,702 |  |  | $ | 3,632 |
(1) | This table does not include any allowances for revenue adjustments that result from billing corrections, customer allowances, money-back service guarantees and other miscellaneous revenue adjustments that are recorded in our revenue from operations.
(2) | Uncollectible accounts written off, net of recoveries.
All other schedules for which provision is made in the applicable accounting regulations of the SEC are not required under the instructions thereto or are inapplicable and, therefore, have been omitted.

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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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