XML 72 R59.htm IDEA: XBRL DOCUMENT
v3.24.2

STOCK-BASED AWARDS - Additional Information (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 USD ($) $ / shares shares | Mar. 31, 2024 | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) priceHurdle installment $ / shares shares | Jun. 30, 2023 USD ($) $ / shares shares | Dec. 31, 2023
Stock-Based Awards |  |  |  |  |  |
Employee benefits and share-based compensation | $ |  |  |  | $ 651 | $ 1,100 |
Stock issued during period, employee stock purchase plan (in shares) | shares |  |  |  | 56,575 | 68,011 |
Average price per share (in dollars per share) |  |  |  | $ 16.53 | $ 16.46 |
Restricted Stock Awards |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Vesting period (in years) |  | 4 years |  |  |  | 3 years
Restricted Stock Awards | Equity Incentive Plan, Four-Year Vesting |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Granted at fair value (in shares) | shares |  |  |  | 256,064 |  |
Restricted Stock Awards | Equity Incentive Plan, Four-Year Vesting Percent |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Cumulative grant date fair value | $ | $ 7,700 |  |  | $ 7,700 |  |
Restricted Stock Awards | First year |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Annual award vesting percentage |  |  |  | 33.30% |  |
Restricted Stock Awards | Second year |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Annual award vesting percentage |  |  |  | 33.30% |  |
Restricted Stock Awards | Third year |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Annual award vesting percentage |  |  |  | 33.40% |  |
Restricted Stock Awards | Equity Incentive Plan, Four-Year Vesting Percent |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Annual award vesting percentage |  |  |  | 25.00% |  |
Performance Shares |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Granted at fair value (in shares) | shares |  |  |  | 1,472,500 |  |
Employee benefits and share-based compensation | $ | $ 1,800 |  |  | $ 3,300 |  |
Performance Shares, Revenue Performance |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Award vesting rights (in percent) |  |  |  | 25.00% |  |
Performance Shares, Stock Performance |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Vesting period (in years) |  |  |  | 3 years |  |
Award vesting rights (in percent) |  |  |  | 75.00% |  |
Number of installments | installment |  |  |  | 3 |  |
Number of share price hurdles | priceHurdle |  |  |  | 3 |  |
Performance Shares, Stock Performance | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Award vesting rights (in percent) |  |  |  | 33.00% |  |
Consecutive trading days used to calculate weighted-average price (in days) |  |  |  | 20 days |  |
Threshold weighted average price for vesting of awards (in dollars per share) | $ 40.00 |  |  | $ 40.00 |  |
Performance Shares, Stock Performance | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Award vesting rights (in percent) |  |  |  | 33.00% |  |
Consecutive trading days used to calculate weighted-average price (in days) |  |  |  | 20 days |  |
Threshold weighted average price for vesting of awards (in dollars per share) | 50.00 |  |  | $ 50.00 |  |
Performance Shares, Stock Performance | Share-Based Payment Arrangement, Tranche Three |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Award vesting rights (in percent) |  |  |  | 34.00% |  |
Consecutive trading days used to calculate weighted-average price (in days) |  |  |  | 20 days |  |
Threshold weighted average price for vesting of awards (in dollars per share) | $ 60.00 |  |  | $ 60.00 |  |
Performance Share Options |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Vesting period (in years) |  |  |  | 4 years |  |
Number of installments | installment |  |  |  | 3 |  |
Number of share price hurdles | priceHurdle |  |  |  | 3 |  |
Employee benefits and share-based compensation | $ | $ 438 |  |  | $ 438 |  |
Grants in period (in shares) | shares |  |  |  | 2,250,000 |  |
Performance Share Options | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Consecutive trading days used to calculate weighted-average price (in days) |  |  |  | 20 days |  |
Threshold weighted average price for vesting of awards (in dollars per share) | $ 45.00 |  |  | $ 45.00 |  |
Vested and expected to vest (in shares) | shares | 500,000 |  |  | 500,000 |  |
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ 45.00 |  |  | $ 45.00 |  |
Performance Share Options | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Consecutive trading days used to calculate weighted-average price (in days) |  |  |  | 20 days |  |
Threshold weighted average price for vesting of awards (in dollars per share) | $ 50.00 |  |  | $ 50.00 |  |
Vested and expected to vest (in shares) | shares | 750,000 |  |  | 750,000 |  |
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ 50.00 |  |  | $ 50.00 |  |
Performance Share Options | Share-Based Payment Arrangement, Tranche Three |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Consecutive trading days used to calculate weighted-average price (in days) |  |  |  | 20 days |  |
Threshold weighted average price for vesting of awards (in dollars per share) | $ 60.00 |  |  | $ 60.00 |  |
Vested and expected to vest (in shares) | shares | 1,000,000 |  |  | 1,000,000 |  |
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ 60.00 |  |  | $ 60.00 |  |
Employee Stock |  |  |  |  |  |
Stock-Based Awards |  |  |  |  |  |
Employee benefits and share-based compensation | $ | $ 305 |  | $ 515 |  |  |
Number of shares available under plan (in shares) | shares | 2,700,000 |  |  | 2,700,000 |  |

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Consecutive Trading Days Used To Calculate Weighted Average Price + References No definition available. + Details
Name: | byon_ShareBasedCompensationArrangementByShareBasedPaymentAwardConsecutiveTradingDaysUsedToCalculateWeightedAveragePrice
Namespace Prefix: | byon_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument Other Than Option, Cumulative Grant Date Fair Value + References No definition available. + Details
Name: | byon_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionCumulativeGrantDateFairValue
Namespace Prefix: | byon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Threshold Weighted Average Price For Vesting Of Awards + References No definition available. + Details
Name: | byon_ShareBasedCompensationArrangementByShareBasedPaymentAwardThresholdWeightedAveragePriceForVestingOfAwards
Namespace Prefix: | byon_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share-Based Payment Arrangement, Number Of Installments + References No definition available. + Details
Name: | byon_ShareBasedPaymentArrangementNumberOfInstallments
Namespace Prefix: | byon_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-Based Payment Arrangement, Number Of Share Price Hurdles + References No definition available. + Details
Name: | byon_ShareBasedPaymentArrangementNumberOfSharePriceHurdles
Namespace Prefix: | byon_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Percentage + References No definition available. + Details
Name: | byon_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardVestingPercentage
Namespace Prefix: | byon_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Employee Stock Ownership Plan, Average Price Per Share + References No definition available. + Details
Name: | byon_StockIssuedDuringPeriodEmployeeStockOwnershipPlanAveragePricePerShare
Namespace Prefix: | byon_
Data Type: | dtr-types1:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense for employee benefit and equity-based compensation. + References No definition available. + Details
Name: | us-gaap_EmployeeBenefitsAndShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 35 -Paragraph 1D -Publisher FASB -URI https://asc.fasb.org/1943274/2147480483/718-10-35-1D Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 35 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480483/718-10-35-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(v) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan. + 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 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 Reference 4: 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 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 25 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480637/718-40-25-10 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
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_PlanNameAxis=byon_EquityIncentivePlanFourYearVestingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=byon_EquityIncentivePlanFourYearVestingPercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=byon_FirstYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=byon_SecondYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=byon_ThirdYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=byon_EquityIncentivePlanFourYearVestingPercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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