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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Estimated Useful Lives of Assets | Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the assets:
Buildings | 13 – 35 years
Building improvements | 15 years
Tenant improvements | Shorter of the term of the related lease or useful life
Acquired in-place leases | Remaining terms of the respective leases
Assembled workforce | 3 years
Computer equipment | 3 years
Schedule of Provision for Impairment | The following table summarizes the provision for impairment during the periods indicated below (in thousands):
| Successor |  | Predecessor
| Year Ended December 31, |  | For the Period from December 23 to December 31, |  | For the Period from January 1 to December 22,
| 2020 |  | 2019
Total provision for impairment | $ | 2,690 |  |  | $ | — |  |  | $ | 7,186 |
Number of properties: (1) |  |  |  |  |
Classified as held for sale | 5 |  | — |  |  | 2 |
Disposed within the period | 3 |  | — |  |  | 4 |
1 Includes the number of properties that were impaired and classified as held for sale or impaired and disposed of during the respective periods. Excludes properties that did not have impairment recorded during the year.

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- Definition Tabular disclosure for impairment of long-lived assets held and used by an entity which includes a description of the impaired long-lived asset and facts and circumstances leading to the impairment, aggregate amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired long-lived asset is reported. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.CC) -URI http://asc.fasb.org/extlink&oid=27011434&loc=d3e125687-122742 + Details
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