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Gain on Sales of Real Estate (Tables)
6 Months Ended
Jun. 30, 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 June 30,Six months ended June 30,
2020201920202019
Number of properties12  18  29  37  
Net sales proceeds$7.4  $28.6  $133.6  $51.1  
Gain on sales of real estate$1.3  $6.9  $39.8  $14.2