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Deposits - Narrative (Details) - USD ($) $ in Billions	Sep. 30, 2025	Dec. 31, 2024
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Total brokered deposits	$ 3.5	$ 4.0
Percent of total deposits	37.00%	44.00%

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- Definition

Brokered Deposits, Excluding CDARS And ICS Two-Way Deposits

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

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- Definition

Brokered Deposits, Excluding CDARS and ICS Two-Way Deposits, Percent of Total Deposits

+ References

No definition available.

+ Details

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Namespace Prefix:	egbn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

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