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Revenue from Contracts with Customers - Future Fixed Revenue from Stewardship and Real Estate Development Services (Details) $ in Thousands | Mar. 31, 2020 USD ($)
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Revenue from Contract with Customer [Abstract] |
Total Remaining Unsatisfied Performance Obligations | $ 13,825
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01 |
Revenue from Contract with Customer [Abstract] |
Total Remaining Unsatisfied Performance Obligations | $ 7,147
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Expected timing of satisfaction, period | 9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 |
Revenue from Contract with Customer [Abstract] |
Total Remaining Unsatisfied Performance Obligations | $ 3,695
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Expected timing of satisfaction, period | 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 |
Revenue from Contract with Customer [Abstract] |
Total Remaining Unsatisfied Performance Obligations | $ 1,691
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Expected timing of satisfaction, period | 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 |
Revenue from Contract with Customer [Abstract] |
Total Remaining Unsatisfied Performance Obligations | $ 1,292
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Expected timing of satisfaction, period |

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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045 + Details
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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045 + Details
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