Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2018
Dec. 31, 2017
Stockholders’ equity:    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 20,000,000 20,000,000
Preferred stock, shares issued 6,900,000 6,900,000
Preferred stock, shares outstanding 6,900,000 6,900,000
Preferred stock, liquidation preference (in dollars per share) $ 25 $ 25
Common stock, par value per share (in dollars per share) $ 0.05 $ 0.05
Common stock, shares authorized 750,000,000 750,000,000
Common stock, shares issued 85,787,355 89,774,135
Common stock, shares outstanding 85,787,355 89,774,135
Spirit Realty, L.P.    
Partners' Capital    
General partners' common capital, units issued 797,644 797,644
General partners' common capital, units outstanding 797,644 797,644
Limited partners' common capital, units issued 84,989,711 88,976,491
Limited partners' common capital, units outstanding 84,989,711 88,976,491
Limited partners' preferred capital, units issued 6,900,000 6,900,000
Limited partners' preferred capital, units outstanding 6,900,000 6,900,000