Related Party Transactions - Related Party Transfers and Acquisitions (Details) $ in Thousands	8 Months Ended	9 Months Ended
	Aug. 31, 2019 USD ($)	Sep. 30, 2019 property	Sep. 30, 2018 USD ($) property
Related Party Transaction [Line Items]
Net book value to parent	$ 0		$ 2,144
Net book value from parent	$ 0		$ 80,429
Affiliated entity | Spirit Realty Capital, Inc.
Related Party Transaction [Line Items]
Number of real estate properties transferred | property			10
Net book value from parent			$ 44,900
Affiliated entity | Spirit Realty Capital, Inc. | B-1 Term Loan
Related Party Transaction [Line Items]
Net book value from parent			$ 35,000
Affiliated entity | Spirit Realty Capital, Inc.
Related Party Transaction [Line Items]
Number of real estate properties transferred | property		0	3
Net book value to parent			$ 2,100