Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Summary of Estimated Useful Lives

Depreciation of real estate assets, excluding land, is recognized on a straight-line basis over their estimated useful lives as follows:

Buildings:	25 – 40 years
Site improvements:	5 – 15 years
Tenant improvements:	shorter of the estimated useful life or non-cancelable term of lease

Schedule Of Gain On Sale Of Real Estate

The following table summarizes our gain on sale of real estate, net during the three months ended March 31, 2021 and March 31, 2020 (in millions):

	Three Months Ended March 31,
	2021		2020
Dispositions to third parties
Gross proceeds	$	46.9	$	60.4
Gain on sale of real estate, net		24.2		20.8