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Schedule of Goodwill (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Goodwill [Line Items] |  |
Goodwill Gross, Beginning balance | $ 307,413 | $ 310,388
Goodwill Gross, allocated to Provision for impairment | 0 | 0
Goodwill Gross, allocated to Properties held for sale | (1,811) | (1,191)
Goodwill, ending balance | 302,994 | 307,413
Goodwill, Accumulated Impairment Losses, Beginning balance | (133,545) | (2,954)
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment | 0 | (132,179)
Goodwill Accumulated Impairment Losses, allocated to Properties held for sale | 0 | 1,191
Goodwill, Accumulated Impairment Losses, Ending balance | (133,434) | (133,545)
Goodwill, Beginning balance | 173,868 | 307,434
Goodwill allocated to Provision for impairment | 0 | (132,179)
Goodwill allocated to Properties held for sale | (1,811) | 0
Goodwill, Ending balance | 169,560 | 173,868
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |
Goodwill [Line Items] |  |
Goodwill Gross, allocated to Provision for impairment | (111) | 0
Goodwill Gross, allocated to Gain on sale of real estate | (2,497) | (1,784)
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment | 111 | 0
Goodwill Accumulated Impairment Losses, allocated to Gain on sale of real estate | 0 | 397
Goodwill allocated to Provision for impairment | 0 | 0
Goodwill allocated to Gain on sale of real estate | $ (2,497) | $ (1,387)

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