Loans (Summary Of Nonaccrual Loans And 90 Days Or More By Year Of Origination) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	$ 1,592,437	$ 975,467
Fiscal Year Before Latest Fiscal Year	881,604	1,539,551
Two Years Before Latest Fiscal Year	1,219,932	806,203
Three Years Before Latest Fiscal Year	527,721	146,373
Four Years Before Latest Fiscal Year	101,786	90,348
Prior	211,412	165,519
Revolving loans at amortized cost	1,565,399	1,628,878
Total	6,100,291	5,352,339
SBL Non-Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	46,766	48,033
Fiscal Year Before Latest Fiscal Year	77,209	33,007
Two Years Before Latest Fiscal Year	30,274	27,809
Three Years Before Latest Fiscal Year	19,337	11,327
Four Years Before Latest Fiscal Year	5,894	4,703
Prior	6,580	6,256
Total	186,060	131,135
SBL Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	140,314	128,750
Fiscal Year Before Latest Fiscal Year	84,538	138,281
Two Years Before Latest Fiscal Year	132,141	104,163
Three Years Before Latest Fiscal Year	90,072	68,087
Four Years Before Latest Fiscal Year	58,687	60,998
Prior	151,959	101,995
Total	657,711	602,274
SBL Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	12,392	2,848
Fiscal Year Before Latest Fiscal Year	13,846	5,966
Two Years Before Latest Fiscal Year	2,899	7,642
Three Years Before Latest Fiscal Year	4,838	927
Four Years Before Latest Fiscal Year		4,534
Prior	710	710
Total	34,685	22,627
Direct Lease Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	282,733	303,770
Fiscal Year Before Latest Fiscal Year	202,614	226,332
Two Years Before Latest Fiscal Year	145,681	95,145
Three Years Before Latest Fiscal Year	49,110	38,161
Four Years Before Latest Fiscal Year	16,011	17,799
Prior	4,404	4,450
Total	700,553	685,657
SBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost	1,015,884	980,419
Total	1,015,884	980,419
IBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost	548,134	646,866
Total	548,134	646,866
Advisor Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	84,414	92,273
Fiscal Year Before Latest Fiscal Year	84,908	63,083
Two Years Before Latest Fiscal Year	55,085	40,994
Three Years Before Latest Fiscal Year	30,901	25,262
Four Years Before Latest Fiscal Year	18,588
Total	273,896	221,612
Real Estate Bridge Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	504,007	397,073
Fiscal Year Before Latest Fiscal Year	418,326	1,072,622
Two Years Before Latest Fiscal Year	853,596	530,087
Three Years Before Latest Fiscal Year	333,112
Total	2,109,041	1,999,782
Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	521,811	2,720
Fiscal Year Before Latest Fiscal Year	163	260
Two Years Before Latest Fiscal Year	256	363
Three Years Before Latest Fiscal Year	351	2,609
Four Years Before Latest Fiscal Year	2,606	2,314
Prior	47,759	52,108
Revolving loans at amortized cost	1,381	1,593
Total	$ 574,327	$ 61,967

Financing Receivable, Excluding Accrued Interest, Originated, Total

No definition available.

Name:	tbbk_FinancingReceivableExcludingAccruedInterestOriginatedTotal
Namespace Prefix:	tbbk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 29
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-29

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

+ Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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