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Subsequent Events (Details) $ in Thousands | Jul. 19, 2022 USD ($) ft² | Jun. 30, 2022 ft²
--- | --- | ---
Subsequent Event [Line Items] |  |
Rentable square feet of commercial real estate properties (in sq feet) | ft² |  | 27,600,000
Pittsburgh Division Office [Member] |  |
Subsequent Event [Line Items] |  |
Percentage of rentable square feet occupied (in hundredths) |  | 92.90%
Percent of NOI (in hundredths) |  | 6.00%
Subsequent Event [Member] | Dallas Joint Ventures [Member] |  |
Subsequent Event [Line Items] |  |
Percentage of equity interest in joint venture (in hundredths) | 50.00% |
Cash funded to acquire interest in joint venture | $ | $ 55,700 |
Construction loan related to joint venture development | $ | $ 380,000 |
Subsequent Event [Member] | Granite Park Six [Member] |  |
Subsequent Event [Line Items] |  |
Percentage of equity interest in joint venture (in hundredths) | 50.00% |
Rentable square feet of commercial real estate properties (in sq feet) | ft² | 422,000 |
Pre-lease percentage of building under development (in hundredths) | 12.00% |
Total anticipated development costs | $ | $ 200,000 |
Subsequent Event [Member] | 23Springs [Member] |  |
Subsequent Event [Line Items] |  |
Percentage of equity interest in joint venture (in hundredths) | 50.00% |
Rentable square feet of commercial real estate properties (in sq feet) | ft² | 642,000 |
Pre-lease percentage of building under development (in hundredths) | 17.00% |
Total anticipated development costs | $ | $ 460,000 |
Subsequent Event [Member] | Pittsburgh Division Office [Member] |  |
Subsequent Event [Line Items] |  |
Rentable square feet of commercial real estate properties (in sq feet) | ft² | 2,155,000 |
Percentage of rentable square feet occupied (in hundredths) | 92.90% |
Percent of NOI (in hundredths) | 6.00% |

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- Definition Amount of cash agreed to be contributed at the formation of the joint venture that has been funded and/or placed in escrow. + References No definition available. + Details
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- Definition Total estimated cost to construct development property. + References No definition available. + Details
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- Definition The percentage of the Company's net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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- Definition The maximum percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References No definition available. + Details
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- Definition The percentage of the rentable square feet of the Company that is occupied. + References No definition available. + Details
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- Definition The percentage of rentable square feet of a building under development that is pre-leased. + References No definition available. + Details
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- Definition This element represents the current and noncurrent portions of a long-term real estate loan with an initial maturity beyond one year or beyond the normal operating cycle, if longer, to finance building costs. The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project (generally one to seven years), usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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