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Gain on Sales of Real Estate (Tables)
3 Months Ended
Mar. 31, 2020
Gain (Loss) on Sale of Investments [Abstract]  
Schedule of properties sold

The following table summarizes our properties sold during the periods indicated below (dollars in millions):
 
Three Months Ended March 31,
 
 
2020

 
2019

Number of properties
17

 
19

Net sales proceeds
$
126.2

 
$
22.5

Gain on sales of real estate
$
38.5

 
$
7.3