Schedule of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill Gross, Beginning balance	$ 310,388	$ 316,858
Goodwill Gross, allocated to Provision for impairment	0	0
Goodwill Gross, allocated to Properties held for sale	(963)	(2,472)
Goodwill, ending balance	308,964	310,388
Goodwill, Accumulated Impairment Losses, Beginning balance	(2,954)	(2,715)
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment	(132,179)	(2,954)
Goodwill Accumulated Impairment Losses, allocated to Properties held for sale	963	0
Goodwill, Accumulated Impairment Losses, Ending balance	(134,170)	(2,954)
Goodwill, Beginning balance	307,434	314,143
Goodwill allocated to Provision for impairment	(132,179)	(2,954)
Goodwill allocated to Properties held for sale	0	(2,472)
Goodwill, Ending balance	174,794	307,434
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Goodwill [Line Items]
Goodwill Gross, allocated to Provision for impairment	0	(1,779)
Goodwill Gross, allocated to Gain on sale of real estate	(461)	(2,219)
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment	0	1,779
Goodwill Accumulated Impairment Losses, allocated to Gain on sale of real estate	0	936
Goodwill allocated to Provision for impairment	0	0
Goodwill allocated to Gain on sale of real estate	$ (461)	$ (1,283)