Discontinued Operations - Discontinued Operations, Statement of Cash Flows Disclosure (Details) - Spirit MTA REIT - Spinoff - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||
| Net cash provided by operating activities | $ 144 | $ 160 | $ 173 |
| Net cash provided by investing activities | $ 136 | $ 100 | $ 262 |