Loans and Leases Held for Investment and Credit Quality - Schedule of Loan Modifications for Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	3 Months Ended
Mar. 31, 2025 USD ($)
Financing Receivable Modifications [Line Items]
Percentage of total class of financing receivable	0.20%
Small Business Banking
Financing Receivable Modifications [Line Items]
Percentage of total class of financing receivable	0.20%
Term Extension
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	$ 3,601
Term Extension \| Small Business Banking
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	3,601
Interest Rate Reduction
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	2,243
Interest Rate Reduction \| Small Business Banking
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	2,243
Combination - Term Extension, Other-Than-Insignificant Payment Delay & Interest Rate Reduction
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	3,057
Combination - Term Extension, Other-Than-Insignificant Payment Delay & Interest Rate Reduction \| Small Business Banking
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	3,057
Combination - Term Extension & Other-Than-Insignificant Payment Delay
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	3,009
Combination - Term Extension & Other-Than-Insignificant Payment Delay \| Small Business Banking
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	3,009
Combination - Term Extension & Interest Rate Reduction
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	193
Combination - Term Extension & Interest Rate Reduction \| Small Business Banking
Financing Receivable Modifications [Line Items]
Amortized cost basis of loans modified during period	$ 193

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

+ References

+ Details

Name:	us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- 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/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-34

Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-33

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

+ Details

Name:	us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=lob_SmallBusinessBankingSectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ContractualInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=lob_ExtendedMaturityPaymentDelayAndInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=lob_ExtendedMaturityAndPaymentDelayMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityAndInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: