Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2020	Feb. 05, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity Registrant Name	Eagle Bancorp, Inc.
Entity Incorporation, State or Country Code	MD
Entity File Number	0-25923
Entity Tax Identification Number	52-2061461
Entity Address, State or Province	MD
Entity Address, Address Line One	7830 Old Georgetown Road
Entity Address, Address Line Two	Third Floor
Entity Address, City or Town	Bethesda
Entity Address, Postal Zip Code	20814
City Area Code	301
Local Phone Number	986-1800
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	EGBN
Security Exchange Name	NASDAQ
Entity a Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 1.0
Entity Common Stock, Shares Outstanding		31,783,355
Entity Central Index Key	0001050441
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY