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Variable Interest Entities Variable Interest Entities - Additional Information (Details) $ in Thousands, ft² in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) ft² | Dec. 31, 2019 USD ($) ft² Property | Dec. 31, 2018 USD ($) ft²
Variable Interest Entity [Line Items] |  |  |
Net Income | $ 200,169 | $ 243,881 | $ 167,334
Gross leasable area (GLA) of industrial properties owned | ft² | 62.8 |  |
Equity in Income (Loss) of Joint Ventures | $ 4,200 | 16,235 | $ (276)
Joint Venture I |  |  |
Variable Interest Entity [Line Items] |  |  |
Equity Method Investment, Ownership Percentage | 49.00% |  |
Equity in Income (Loss) of Joint Ventures | $ 2,674 | 4,880 |
Incentive Fee | $ 1,338 |  |
Joint Venture II |  |  |
Variable Interest Entity [Line Items] |  |  |
Equity Method Investment, Ownership Percentage | 43.00% |  |
Purchase Price | $ 70,530 |  |
Joint Ventures |  |  |
Variable Interest Entity [Line Items] |  |  |
Net Income | 13,568 | 29,999 |
Equity Method Investment, Realized Gain (Loss) on Disposal | 6,827 | 14,816 |
Asset Management Fee | 590 | 146 |
Receivable balance due from joint venture | $ 90 | $ 588 |
Disposition Activity |  |  |
Variable Interest Entity [Line Items] |  |  |
Gross leasable area (GLA) of industrial properties owned | ft² | 1.9 | 5.9 | 2.6
Disposition Activity | Joint Ventures |  |  |
Variable Interest Entity [Line Items] |  |  |
Equity Method Investment, Realized Gain (Loss) on Disposal | $ 13,932 | $ 30,236 |
Acquisition Activity |  |  |
Variable Interest Entity [Line Items] |  |  |
Purchase Price | $ 224,027 | $ 147,887 | $ 167,546
Gross leasable area (GLA) of industrial properties owned | ft² | 1.5 | 0.5 | 1.0
Acquisition Activity | Joint Venture I |  |  |
Variable Interest Entity [Line Items] |  |  |
Gross leasable area (GLA) of industrial properties owned | ft² | 0.6 |  |
Number of Acres | Property |  | 39 |
Joint Venture Disposition Activity | Joint Venture I |  |  |
Variable Interest Entity [Line Items] |  |  |
Equity Method Investment, Realized Gain (Loss) on Disposal | $ 3,443 | $ 3,121 |

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