Number of financing receivables outstanding that have been modified by troubled debt restructurings.

No definition available.

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Period Type:	duration

- Definition

The number of loan paydowns during the period.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of accruing financing receivables that have been modified by troubled debt restructurings.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of TDR loans that defaulted on their modified terms and reclassified to non-performing loans.

+ References

No definition available.

+ Details

Name:	egbn_NumberOfLoansSubsequentDefaultsReclassifiedToNonperforming
Namespace Prefix:	egbn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

+ Details

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

- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Loans and Allowance for Credit Losses - TDR Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 loan	Jun. 30, 2020 loan	Jun. 30, 2021 USD ($) loan contract	Jun. 30, 2020 USD ($) loan contract
Loans and Leases Receivable Disclosure [Line Items]
Number of TDR loans \| contract			7	13
Troubled debt restructuring, amount			$ 16,587	$ 20,322
Restructured and subsequently defaulted			$ 6,342	$ 8,050
Number of loans - restructured accruing	1	1	5	10
Number of loans paydowns \| loan			0	0
Number of contracts modified in TDR \| loan			0	0
Performing Financial Instruments
Loans and Leases Receivable Disclosure [Line Items]
Number of TDR loans \| contract			5
Troubled debt restructuring, amount			$ 10,200
Non-Performing Loans
Loans and Leases Receivable Disclosure [Line Items]
Number of loans subsequent defaults reclassified to non-performing \| loan			0	1
Restructured and subsequently defaulted				$ 5,500