Assets Held for Sale or Contribution (Tables)

12 Months Ended

Dec. 31, 2019

Real Estate Assets Held For Development And Sale [Abstract]

Summary of Assets Held for Sale or Contribution

Assets held for sale or contribution consisted of the following at December 31 (dollars and square feet in thousands):

	2019		2018
Number of operating properties		28		57
Square feet		9,371		8,236
Total assets held for sale or contribution	$	720,685	$	622,288
Total liabilities associated with assets held for sale or contribution – included in Other Liabilities	$	41,994	$	12,972