Related Party Transactions	6 Months Ended
Jun. 30, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions As described in Note 1, the accompanying condensed combined financial statements present the operations of the office and multifamily assets as carved-out from the financial statements of Vornado. Certain centralized corporate costs borne by Vornado for management and other services including, but not limited to, accounting, reporting, legal, tax, information technology and human resources have been allocated to the assets in the combined financial statements using reasonable allocation methodologies. The total amounts allocated during the three months ended June 30, 2017 and 2016 were $5.4 million and $4.6 million, respectively. The total amounts allocated during the six months ended June 30, 2017 and 2016 were $12.2 million and $10.7 million, respectively. These allocated amounts are included as a component of general and administrative expenses on the combined statements of income and do not necessarily reflect what actual costs would have been if the Vornado Included Assets were a separate standalone public company. Actual costs may be materially different. Allocated amounts for the three and six months ended June 30, 2017 and 2016 are not necessarily indicative of allocated amounts for a full year. In August 2014, we completed a $185.0 million financing of the Universal buildings, a 687,000 square foot office complex located in Washington, DC. In connection with this financing, pursuant to a note agreement dated August 12, 2014, we used a portion of the financing proceeds and made an $86.0 million loan to Vornado at LIBOR plus 2.9% (4.4% at June 30, 2017) due August 2019. During 2016 and 2015, Vornado repaid $4.0 million and $7.0 million of the loan receivable, respectively. As of June 30, 2017 and December 31, 2016, the balance of the receivable from Vornado, including accrued interest, was $76.7 million and $75.1 million, respectively. We recognized interest income of $843,000 and $1.7 million during the three and six months ended June 30, 2017, respectively, and $746,000 and $1.5 million during the three and six months ended June 30, 2016, respectively. At the Separation, Vornado repaid the outstanding balance of the loan and related accrued interest. In connection with the development of The Bartlett, we entered into various note agreements with Vornado whereby we could borrow up to a maximum of $170.0 million. As of June 30, 2017 and December 31, 2016, the amounts outstanding under these note agreements at LIBOR plus 2.9% (4.7% at June 30, 2017) were $174.3 million and $166.5 million, respectively, and are included in “Payable to Vornado Realty Trust” on our condensed combined balance sheets. We incurred interest of $2.0 million and $3.7 million during the three and six months ended June 30, 2017, respectively, and $1.1 million and $1.8 million during the three and six months ended June 30, 2016, respectively. Vornado contributed these note agreements to JBG SMITH at the Separation. In June 2016, the $115.0 million mortgage loan (including $608,000 of accrued interest) secured by the Bowen Building, a 231,000 square foot office building located in Washington, DC, was repaid with the proceeds of a $115.6 million draw on Vornado’s revolving credit facility. Given that the $115.6 million draw on Vornado’s credit facility is secured by an interest in the property, such amount is included in “Payable to Vornado Realty Trust” on our condensed combined balance sheets. We incurred interest expense of $625,000 and $1.2 million during the three and six months ended June 30, 2017, respectively, and $145,000 for both the three and six months ended June 30, 2016. The mortgage was assigned to JBG SMITH at the Separation, and the note was repaid with amounts drawn under our revolving credit facility. See Note 12 for further discussion. We have agreements with Building Maintenance Services (“BMS”), a wholly owned subsidiary of Vornado, to supervise cleaning, engineering and security services at our properties. We paid BMS $3.2 million and $6.3 million during the three and six months ended June 30, 2017, respectively, and $3.2 million and $6.3 million during the three and six months ended June 30, 2016, respectively, which are included in “Property operating expenses” on our condensed combined statements of income. In connection with the Separation and the Combination, we entered into an agreement with Vornado under which Vornado will provide operational support for an initial period of up to two years. See Note 12 for further discussion. We entered into a consulting agreement with Mr. Schear, a member of our Board of Trustees and formerly the president of Vornado’s Washington, DC segment. The consulting agreement, which expires on December 31, 2017, is subject to renewal through the second anniversary of the closing of the Combination unless earlier terminated and provides for the payment of consulting fees at the rate of $166,667 per month for the 24 months following the closing, including upon termination of the consulting agreement in certain circumstances by us, or after December 31, 2017 by him. In March 2017, Vornado amended Mr. Schear’s employment agreement with Vornado to provide for the payments that Mr. Schear will receive in connection with certain post-employment services related to the Separation which services are intended to facilitate the integration of the operations of Vornado’s Washington, DC segment with those of the management business and certain assets of JBG.

Related Party Transactions

As described in Note 1, the accompanying condensed combined financial statements present the operations of the office and multifamily assets as carved-out from the financial statements of Vornado. Certain centralized corporate costs borne by Vornado for management and other services including, but not limited to, accounting, reporting, legal, tax, information technology and human resources have been allocated to the assets in the combined financial statements using reasonable allocation methodologies. The total amounts allocated during the three months ended June 30, 2017 and 2016 were $5.4 million and $4.6 million, respectively. The total amounts allocated during the six months ended June 30, 2017 and 2016 were $12.2 million and $10.7 million, respectively. These allocated amounts are included as a component of general and administrative expenses on the combined statements of income and do not necessarily reflect what actual costs would have been if the Vornado Included Assets were a separate standalone public company. Actual costs may be materially different. Allocated amounts for the three and six months ended June 30, 2017 and 2016 are not necessarily indicative of allocated amounts for a full year.

In August 2014, we completed a $185.0 million financing of the Universal buildings, a 687,000 square foot office complex located in Washington, DC. In connection with this financing, pursuant to a note agreement dated August 12, 2014, we used a portion of the financing proceeds and made an $86.0 million loan to Vornado at LIBOR plus 2.9% (4.4% at June 30, 2017) due August 2019. During 2016 and 2015, Vornado repaid $4.0 million and $7.0 million of the loan receivable, respectively. As of June 30, 2017 and December 31, 2016, the balance of the receivable from Vornado, including accrued interest, was $76.7 million and $75.1 million, respectively. We recognized interest income of $843,000 and $1.7 million during the three and six months ended June 30, 2017, respectively, and $746,000 and $1.5 million during the three and six months ended June 30, 2016, respectively. At the Separation, Vornado repaid the outstanding balance of the loan and related accrued interest.

In connection with the development of The Bartlett, we entered into various note agreements with Vornado whereby we could borrow up to a maximum of $170.0 million. As of June 30, 2017 and December 31, 2016, the amounts outstanding under these note agreements at LIBOR plus 2.9% (4.7% at June 30, 2017) were $174.3 million and $166.5 million, respectively, and are included in “Payable to Vornado Realty Trust” on our condensed combined balance sheets. We incurred interest of $2.0 million and $3.7 million during the three and six months ended June 30, 2017, respectively, and $1.1 million and $1.8 million during the three and six months ended June 30, 2016, respectively. Vornado contributed these note agreements to JBG SMITH at the Separation.

In June 2016, the $115.0 million mortgage loan (including $608,000 of accrued interest) secured by the Bowen Building, a 231,000 square foot office building located in Washington, DC, was repaid with the proceeds of a $115.6 million draw on Vornado’s revolving credit facility. Given that the $115.6 million draw on Vornado’s credit facility is secured by an interest in the property, such amount is included in “Payable to Vornado Realty Trust” on our condensed combined balance sheets. We incurred interest expense of $625,000 and $1.2 million during the three and six months ended June 30, 2017, respectively, and $145,000 for both the three and six months ended June 30, 2016. The mortgage was assigned to JBG SMITH at the Separation, and the note was repaid with amounts drawn under our revolving credit facility. See Note 12 for further discussion.

We have agreements with Building Maintenance Services (“BMS”), a wholly owned subsidiary of Vornado, to supervise cleaning, engineering and security services at our properties. We paid BMS $3.2 million and $6.3 million during the three and six months ended June 30, 2017, respectively, and $3.2 million and $6.3 million during the three and six months ended June 30, 2016, respectively, which are included in “Property operating expenses” on our condensed combined statements of income.

In connection with the Separation and the Combination, we entered into an agreement with Vornado under which Vornado will provide operational support for an initial period of up to two years. See Note 12 for further discussion.

We entered into a consulting agreement with Mr. Schear, a member of our Board of Trustees and formerly the president of Vornado’s Washington, DC segment. The consulting agreement, which expires on December 31, 2017, is subject to renewal through the second anniversary of the closing of the Combination unless earlier terminated and provides for the payment of consulting fees at the rate of $166,667 per month for the 24 months following the closing, including upon termination of the consulting agreement in certain circumstances by us, or after December 31, 2017 by him. In March 2017, Vornado amended Mr. Schear’s employment agreement with Vornado to provide for the payments that Mr. Schear will receive in connection with certain post-employment services related to the Separation which services are intended to facilitate the integration of the operations of Vornado’s Washington, DC segment with those of the management business and certain assets of JBG.