Organization - Additional Information (Details) $ / shares in Units, $ in Thousands							1 Months Ended		3 Months Ended			9 Months Ended
	Jul. 22, 2019 shares	Mar. 18, 2019 USD ($) $ / shares shares	Jul. 24, 2018 USD ($) $ / shares shares	Jun. 30, 2018 shares	Jun. 25, 2018 $ / shares shares	Jan. 31, 2017 ClassofEquity	Aug. 31, 2019 USD ($)	Jul. 20, 2018 $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares	Mar. 31, 2019 shares	Sep. 30, 2018 shares	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2018 USD ($)	Dec. 31, 2018 $ / shares shares	Jun. 21, 2018 shares	Jun. 20, 2018 shares	Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common shares, par value per share | $ / shares									$ 0.01			$ 0.01		$ 0.01
Proceeds from issuance of shares, net of underwriting discounts and commissions and other expenses | $												$ 309,768	$ 464,182
Common stock, issued shares									79,672,970			79,672,970		43,749,092
Number of classes of equity units issued | ClassofEquity						4
Sale of stock, percentage of ownership after transaction						52.30%
Operating Partnership Unit
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Proceeds from concurrent private placement | $													16,001
Stonebriar Holdings
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of ownership						45.70%
EPRT Management
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of ownership						2.00%
Change in ownership percentages																	0.00%
EPRT Holdings LLC
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Interest received in Operating Partnership															17,913,592	17,913,592
Common Stock
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock issued, shares				32,500,000					3,344,805	14,030,000	2,772,191
Common stock, price per share | $ / shares								$ 14.00
Proceeds from concurrent private placement | $													$ 108,999
Concurrent private placement of common stock, shares				7,785,611
Common stock to purchase number of additional shares								4,875,000
Initial Public Offering | Common Stock
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock issued, shares			2,772,191		32,500,000
Common shares, par value per share | $ / shares					$ 0.01
Common stock, price per share | $ / shares			$ 14.00		$ 14.00
Proceeds from issuance of shares, net of underwriting discounts and commissions and other expenses | $			$ 458,700
Private Placement | Eldridge Industries, LLC
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Proceeds from concurrent private placement | $												$ 125,000
Common stock, issued shares																43,057,802
Private Placement | Eldridge Industries, LLC | Operating Partnership
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Operating partnership units issued												1,142,960
Private Placement | Common Stock | Eldridge Industries, LLC
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Concurrent private placement of common stock, shares												7,785,611
Follow-On Offering | Common Stock
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock issued, shares		14,030,000
Common stock, price per share | $ / shares		$ 17.50
Proceeds from issuance of shares, net of underwriting discounts and commissions and other expenses | $		$ 234,600
Common stock to purchase number of additional shares		1,830,000
Secondary Offering | Operating Partnership Unit
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Operating partnership units outstanding									553,847			553,847
Secondary Offering | Operating Partnership
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Operating partnership units converted	18,502,705											18,502,705
Secondary Offering | Common Stock
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock issued, shares	26,288,316
Stock issued during period for options to purchase additional shares	3,428,910
ATM program
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, issued shares									3,344,805			3,344,805
Common stock weighted average price per share | $ / shares									$ 22.42			$ 22.42
Proceeds from issuance of common stock gross | $									$ 75,000			$ 75,000
ATM program | Maximum
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock shares authorized, value | $							$ 200,000