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Other Investments (Narrative) (Details) |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |
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Jan. 02, 2019 USD ($) $ / shares shares | Nov. 30, 2020 USD ($) shares | Oct. 31, 2020 USD ($) | Jun. 30, 2020 | Mar. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) building lease | Nov. 30, 2019 USD ($) shares | Aug. 31, 2019 USD ($) shares | May 31, 2019 USD ($) | Apr. 30, 2019 USD ($) | Feb. 28, 2019 | Dec. 31, 2018 USD ($) lease building | Jun. 30, 2018 USD ($) lease facility | May 31, 2018 USD ($) office_building | Dec. 31, 2018 USD ($) | Jun. 30, 2018 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) building | Dec. 31, 2018 USD ($) | Sep. 30, 2020 USD ($) | Oct. 31, 2019 USD ($) | Jan. 31, 2019 USD ($) | Oct. 31, 2017 USD ($) | Aug. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of investor units purchased (in shares) | shares | 12,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investor units, purchase price per unit (in dollars per share) | $ / shares | $ 20.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire equity method investments | $ 250,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 260,121,000 | $ 656,720,000 | $ 94,578,000 |  |  |  |  |  |
Conversion of Investor Units into shares |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restriction period on common stock received as payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |  |
Commitment to extend credit |  |  |  |  |  | $ 150,000,000.0 |  |  |  |  |  |  |  |  |  |  |  | 150,000,000.0 |  |  |  |  |  |  |
Number of industrial facilities sold | facility |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Number of ground leases structured and entered into | lease |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Number of ground leases sold | lease |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from sales of real estate |  |  |  |  |  |  |  |  |  |  |  |  | $ 36,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Income from sales of real estate |  |  |  |  |  |  |  |  |  |  |  |  | $ 24,500,000 |  |  |  | $ 6,318,000 | 236,623,000 | 126,004,000 |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 530,949,000 | $ 479,496,000 | 798,122,000 |  |  |  |  |  |
Number of units in real estate property to be built | building |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |
Acquisitions of real estate assets |  |  |  |  |  |  |  |  | $ 56,700,000 |  |  |  |  |  |  |  | 0 | $ 240,487,000 | 19,454,000 |  |  |  |  |  |
SAFE |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense reimbursements from related party |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 700,000 |  | 5,000,000.0 | 2,100,000 |  |  |  |  |  |  |
Ground lease term |  |  |  |  |  |  |  | 99 years |  |  | 98 years |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |
Great Oaks |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 99 years |  |
Real estate leasehold improvement allowances |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,200,000 |  |
Ground Lease Multifamily Development SanJose CA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,400,000 | 1,200,000 | 200,000 |  |  |  |  |  |
Proceeds from sale of ground lease |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 34,000,000.0 |  |  |  |  |
Gain (loss) from sale of ground lease |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,100,000 |  |  |  |  |  |  |  |
Ground Lease, 100 200 Glenridge Point |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,900,000 |  |  |  |  |  |  |
Ground Lease Conversion Washington DC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to extend credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 13,300,000 |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000.0 | $ 1,000,000.0 |  |  |  |  |  |  |
Ground Lease Conversion Seattle WA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to extend credit |  |  | $ 22,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000 |  |  |  |  |  |  |  |
Consideration received |  |  | $ 2,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ground Lease Tenant Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to extend credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 22,000,000.0 |  |  |  |
Net Lease Venture II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51.90% |  |  |  |  |  |  |  |
Other real estate equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments related to party |  |  |  |  |  | $ 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Real Estate Equity Investment Aug 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,400,000 | $ 2,800,000 | 1,100,000 |  |  |  |  |  |
Payments for funding under loan commitments |  |  |  |  |  | $ 33,000,000.0 |  |  |  |  |  |  |  |  |  |  | 33,000,000.0 | $ 33,000,000.0 |  |  |  |  |  |  |
Other Real Estate Equity Investment Dec 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |
Affiliated Entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate transaction price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 34,300,000 |  |  |  |  |  |  |
Payments to acquire land and develop asset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,300,000 |  |  |  |  |  |  |
Assumption of loan in acquisition transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 27,000,000.0 |  |  |  |  |  |  |
The Properties - Livermore CA | Net Lease Venture II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties | building |  |  |  |  |  | 2 |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions of real estate assets |  |  |  |  |  | $ 81,800,000 |  |  |  |  |  | $ 31,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of acquired properties leased |  |  |  |  |  | 100.00% |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Number of leases | lease |  |  |  |  |  | 2 |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |
Land | Other real estate equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  |  |  | $ 42,900,000 |  |  |  |  |  |  |  |  |  |  | 31,200,000 | 42,900,000 |  |  |  |  |  |  |
Operating Properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from sales of real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 | 11,900,000 | 81,000,000.0 |  |  |  |  |  |
Operating Properties | Other real estate equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value |  |  |  |  |  | $ 61,700,000 |  |  |  |  |  |  |  |  |  |  | 58,700,000 | 61,700,000 |  |  |  |  |  |  |
Operating Properties | Other Real Estate Equity Investment Dec 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600,000 | 2,100,000 |  |  |  |  |  |
Loans commitment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 27,000,000.0
Operating Properties | Affiliated Entity | Other Real Estate Equity Investment Dec 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate transaction price |  |  |  |  |  |  |  |  |  | $ 34,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire land and develop asset |  |  |  |  |  |  |  |  |  | 7,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assumption of loan in acquisition transaction |  |  |  |  |  |  |  |  |  | $ 27,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leasehold First Mortgage | Great Oaks |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to extend credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80,500,000 |  |
Loans receivable net of deferred income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 80,500,000 |  |
Safehold Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ground lease term |  |  |  | 99 years |  |  |  |  |  |  |  |  |  |  |  |  |  | 98 years |  |  |  |  |  |  |
Safehold Inc. | Ground Lease, Atlanta medical office |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,200,000 | 1,400,000 |  |  |  |  |  |
Safehold Inc. | Ground Lease, 100 200 Glenridge Point |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to extend credit |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 19,900,000 |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,400,000 |  |  |  |  |  |
Number of office buildings | office_building |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |
Safehold Inc. | Ground Lease, Atlanta medical office |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to extend credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 24,000,000.0 |
Commitment to extend credit, amount funded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 61,800,000 |  |  |  |  |  |  | $ 18,400,000 |
Management Fees | SAFE |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from related party |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,800,000 | $ 1,800,000 | 12,700,000 | 7,500,000 |  |  |  |  |  |  |
Management Fees | Other Income | Net Lease Venture II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to extend credit, amount funded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85,900,000 |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 | $ 1,500,000 | $ 400,000 |  |  |  |  |  |
Management Fees | Master Lease | Other Income | Net Lease Venture II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term |  |  |  |  |  | 25 years |  |  |  |  |  |  |  |  |  |  |  | 25 years |  |  |  |  |  |  |
Minimum | Other real estate equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 31.00% |  |  |  |  |  |  |  |
Maximum | Other real estate equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 95.00% |  |  |  |  |  |  |  |
Fee percent of SAFE Equity up to $1.5 billion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee as percent of equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |
Fee percent of SAFE Equity up to $1.5 billion | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee equity threshold amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  |
Fee percent of SAFE Equity between $1.5 billion and $3.0 billion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee as percent of equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |
Fee percent of SAFE Equity between $1.5 billion and $3.0 billion | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee equity threshold amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  |
Fee percent of SAFE Equity between $1.5 billion and $3.0 billion | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee equity threshold amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000,000.0 |  |  |  |  |  |  |  |
Fee percent of SAFE Equity between $3.0 billion and $5.0 billion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee as percent of equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.375% |  |  |  |  |  |  |  |
Fee percent of SAFE Equity between $3.0 billion and $5.0 billion | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee equity threshold amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000,000.0 |  |  |  |  |  |  |  |
Fee percent of SAFE Equity between $3.0 billion and $5.0 billion | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee equity threshold amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,000,000,000.0 |  |  |  |  |  |  |  |
Fee percent of SAFE Equity over $5.0 billion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee as percent of equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |
Fee percent of SAFE Equity over $5.0 billion | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee equity threshold amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,000,000,000.0 |  |  |  |  |  |  |  |
Real Estate Investment | SAFE |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting power cap threshold | 41.90% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Independent period | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Standstill provisions | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock transfer limitation maximum per agreement, other than widely distributed public offering | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock company acquired (in shares) |  | $ 65,000,000.0 |  |  | $ 80,000,000.0 |  | $ 130,000,000.0 | $ 168,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock company acquired | shares |  | 1,100,000 |  |  | 1,700,000 |  | 3,800,000 | 6,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65.40% |  |  |  |  |  |  |  |

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