Other Assets, Net Summary of Other Assets, Net (Details) - USD ($)	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred Costs, Leasing, Gross	$ 205,830,000		$ 202,066,000
Deferred Costs, Leasing, Accumulated Amortization	79,814,000		72,465,000
Deferred leasing costs, net	126,016,000		129,601,000
Lease intangible assets, net	23,644,000		34,390,000
Other identified intangible assets, net	48,620,000	$ 767,000	55,469,000
Operating right-of-use assets, net (1)	19,865,000	35,300,000	0
Prepaid expenses	12,556,000	$ 140,000	6,482,000
Deferred financing costs on credit facility, net	3,071,000		4,806,000
Deposits	3,210,000		3,633,000
Derivative agreements, at fair value	0		10,383,000
Other	16,705,000		20,230,000
Total other assets, net	$ 253,687,000		$ 264,994,000