Impairments (Narrative) (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill, impairment loss				$ 22,384,000
Intangible asset impairment				5,400,000
Goodwill	14,864,000	$ 14,864,000	$ 37,248,000	14,864,000	$ 37,248,000	$ 37,248,000	$ 37,248,000
Certain Investments In Unconsolidated Real Estate Joint Ventures [Member]
Goodwill [Line Items]
Goodwill, impairment loss	2,200,000			2,200,000
IT'SUGAR, LLC [Member]
Goodwill [Line Items]
Estimated fair value		27,300,000
Goodwill, impairment loss		22,400,000		0
IT'SUGAR, LLC [Member]
Goodwill [Line Items]
Goodwill, impairment loss		$ 20,300,000		25,300,000
Goodwill	$ 14,900,000			$ 14,900,000