XML 44 R33.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Significant Accounting Policies - Summary of Accelerated Repurchase Activity (Details) - USD ($) $ in Millions |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 24, 2022 | Aug. 26, 2021 | Feb. 25, 2021 | Dec. 31, 2023 | Dec. 31, 2022
February 2021 ASR Agreement [Member] |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |
Agreement Date |  |  | 2021-02 |  |
Settlement Date |  |  |  | 2021-08 | 2021-08
Agreement Amount |  |  | $ 275.0 |  |
Initial shares delivered |  |  | 960,330 |  |
Additional Shares Delivered |  |  | 140,716 |  |
Total Shares Delivered |  |  | 1,101,046 |  |
August 2021 ASR Agreement [Member] |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |
Agreement Date |  | 2021-08 |  |  |
Settlement Date |  |  |  | 2022-01 | 2022-01
Agreement Amount |  | $ 250.0 |  |  |
Initial shares delivered |  | 655,365 |  |  |
Additional Shares Delivered |  | 123,410 |  |  |
Total Shares Delivered |  | 778,775 |  |  |
February 2022 ASR Agreement [Member] |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |
Agreement Date | 2022-02 |  |  |  |
Settlement Date |  |  |  | 2022-04 | 2022-04
Agreement Amount | $ 400.0 |  |  |  |
Initial shares delivered | 1,018,157 |  |  |  |
Additional Shares Delivered | 372,809 |  |  |  |
Total Shares Delivered | 1,390,966 |  |  |  |

X
- Definition Accelerated share repurchase agreement date. + References No definition available. + Details
Name: | odfl_AcceleratedShareRepurchaseAgreementDate
Namespace Prefix: | odfl_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accelerated share repurchase settlement date. + References No definition available. + Details
Name: | odfl_AcceleratedShareRepurchaseSettlementDate
Namespace Prefix: | odfl_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Treasury stock additional shares acquired. + References No definition available. + Details
Name: | odfl_TreasuryStockAdditionalSharesAcquired
Namespace Prefix: | odfl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AcceleratedShareRepurchasesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 25 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481138/505-30-25-5 + Details
Name: | us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=odfl_February2021ASRAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=odfl_August2021ASRAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=odfl_February2022ASRAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |