XML 54 R38.htm IDEA: XBRL DOCUMENT
v3.20.4

Share-Based Compensation and Benefit Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Share-Based Compensation and Benefit Plans |
Summary of shares authorized and available for future issuance under compensation and benefit plans | ​
​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020
​ |  | Total Shares Authorized for |  | Shares Available for Future
Plans | ​ | Issuance under the Plans | ​ | Issuance under the Plans
Incentive Plans |  | 34,650 |  | 5,592
Employee Stock Purchase Plan |  | 4,250 |  | 506
Profit Sharing and Savings Plan |  | 4,200 |  | 349
Restricted stock [Member] |
Share-Based Compensation and Benefit Plans |
Summary of activity of share-based compensation and benefit plans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Year Ended
​ | ​ | December 31,
​ |  | 2020 |  | 2019 |  | 2018
Compensation expense for restricted shares awarded | ​ | $ | 1,488 | ​ | $ | 1,387 | ​ | $ | 1,370
Income tax benefit from compensation expense related to restricted shares | ​ | $ | 373 | ​ | $ | 341 | ​ | $ | 340
Total fair value of restricted shares at vest date | ​ | $ | 1,591 | ​ | $ | 1,633 | ​ | $ | 1,230
Shares awarded under the plans | ​ |  | 4 | ​ |  | 4 | ​ |  | 5
Weighted-average grant-date fair value of shares awarded under the plans | ​ | $ | 412.67 | ​ | $ | 355.91 | ​ | $ | 263.89
Employee stock purchase plan [Member] |
Share-Based Compensation and Benefit Plans |
Summary of ESPP plan activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Year Ended
​ | ​ | December 31,
​ |  | 2020 |  | 2019 |  | 2018
Compensation expense for shares issued under the ESPP | ​ | $ | 2,824 | ​ | $ | 2,490 | ​ | $ | 2,285
Income tax benefit from compensation expense related to shares issued under the ESPP | ​ | $ | 708 | ​ | $ | 612 | ​ | $ | 566
Shares issued under the ESPP | ​ |  | 45 | ​ |  | 43 | ​ |  | 53
Weighted-average price of shares issued under the ESPP | ​ | $ | 353.04 | ​ | $ | 329.69 | ​ | $ | 245.26
Employee [Member] | Restricted stock [Member] |
Share-Based Compensation and Benefit Plans |
Summary of restricted stock | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted-Average Grant-Date
​ |  | Shares |  | Fair Value
Non-vested at December 31, 2019 |  | 4 | ​ | $ | 301.40
Granted during the period |  | 2 | ​ |  | 419.88
Vested during the period (1) |  | (2) | ​ |  | 289.03
Forfeited during the period |  | — | ​ |  | —
Non-vested at December 31, 2020 |  | 4 | ​ | $ | 358.58
Director [Member] | Restricted stock [Member] |
Share-Based Compensation and Benefit Plans |
Summary of restricted stock | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted-Average Grant-Date
​ |  | Shares |  | Fair Value
Non-vested at December 31, 2019 |  | 4 | ​ | $ | 312.96
Granted during the period |  | 2 | ​ |  | 407.12
Vested during the period |  | (2) | ​ |  | 293.72
Forfeited during the period |  | — | ​ |  | —
Non-vested at December 31, 2020 |  | 4 | ​ | $ | 371.46
Stock option [Member] |
Share-Based Compensation and Benefit Plans |
Black-Scholes option pricing model | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2020 | ​ | 2019 | ​ | 2018
Risk free interest rate |  | 0.86 | % | ​ | 2.26 | % | ​ | 2.63 | %
Expected life |  | 5.9 | Years | ​ | 5.7 | Years | ​ | 5.9 | Years
Expected volatility |  | 26.4 | % | ​ | 25.1 | % | ​ | 24.0 | %
Expected dividend yield |  | — | % | ​ | — | % | ​ | — | %
Summary of activity of share-based compensation and benefit plans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Year Ended
​ | ​ | December 31,
​ |  | 2020 | ​ | 2019 | ​ | 2018
Compensation expense for stock options awarded (in thousands) | ​ | $ | 18,435 | ​ | $ | 18,044 | ​ | $ | 16,521
Income tax benefit from compensation expense related to stock options (in thousands) | ​ |  | 4,620 | ​ |  | 4,436 | ​ |  | 4,093
Total intrinsic value of stock options exercised (in thousands) | ​ |  | 79,451 | ​ |  | 117,489 | ​ |  | 156,327
Cash received from exercise of stock options (in thousands) | ​ |  | 46,282 | ​ |  | 46,106 | ​ |  | 61,403
Weighted-average grant-date fair value of options awarded | ​ | $ | 106.76 | ​ | $ | 105.37 | ​ | $ | 76.57
Weighted-average remaining contractual life of exercisable options (in years) | ​ |  | 4.5 | ​ |  | 4.6 | ​ |  | 4.4
Stock option [Member] | Employee stock option [Member] |
Share-Based Compensation and Benefit Plans |
Summary of stock options | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ |  | Average |  | Aggregate
​ | ​ | Shares | ​ | Weighted- Average | ​ | Remaining | ​ | Intrinsic Value
​ | ​ | (in thousands) | ​ | Exercise Price | ​ | Contractual Terms | ​ | (in thousands)
Outstanding at December 31, 2019 |  | 1,635 | ​ | $ | 218.10 |  |  | ​ |  | ​ |
Granted |  | 175 | ​ |  | 394.79 |  |  | ​ |  | ​ |
Exercised |  | (288) | ​ |  | 160.67 |  |  | ​ |  | ​ |
Forfeited or expired |  | (22) | ​ |  | 302.55 |  |  | ​ |  | ​ |
Outstanding at December 31, 2020 |  | 1,500 | ​ | $ | 248.52 |  | 5.7 | Years | ​ | $ | 306,095
Vested or expected to vest at December 31, 2020 |  | 1,470 | ​ | $ | 246.44 |  | 5.7 | Years | ​ | $ | 302,927
Exercisable at December 31, 2020 |  | 988 | ​ | $ | 202.19 |  | 4.5 | Years | ​ | $ | 247,419

X
- Definition Tabular disclosure of the number of common stock shares authorized and available for future issuance under share-based employee benefit and compensation plans. + References No definition available. + Details
Name: | orly_ScheduleOfCommonSharesAvailableForFutureIssuanceUnderBenefitAndCompensationPlans
Namespace Prefix: | orly_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of employee stock purchase plan activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationEmployeeStockPurchasePlanActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=orly_EmployeeStockPurchasePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=orly_EmployeeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=srt_DirectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_StockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |