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Leases - Narrative (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($) numberOfLease	Dec. 31, 2023 USD ($)
Lessee, Lease, Description [Line Items]
Right-of-use assets - operating leases	$ 16,250	$ 19,129
Operating lease liabilities	$ 20,016	23,238
Probability that lease options will be exercised	90.00%
Number of leases renewed | numberOfLease	2
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Right-of-use assets - operating leases	$ 16,300	19,100
Operating lease liabilities	$ 20,000	$ 23,200

X

- Definition

Leases, Number of Leases Renewed

+ References

No definition available.

+ Details

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Namespace Prefix:	egbn_
Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Definition

Percent probability of option to extend lease.

+ References

No definition available.

+ Details

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Namespace Prefix:	egbn_
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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 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

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Period Type:	instant

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