Related Parties	3 Months Ended
Mar. 31, 2022
Related Party Transactions [Abstract]
Related Parties	19.Related Parties Management Agreements We provide property management, leasing and other related services to certain properties owned by members of the Otto Family. We recognized fee income of $489,000 and $517,000 for the three months ended March 31, 2022 and 2021, respectively, in connection with these agreements, which is included as a component of “fee and other income” on our consolidated statements of income. As of March 31, 2022 and December 31, 2021, amounts owed to us under these agreements aggregated $752,000 and $484,000, respectively, which are included as a component of “accounts and other receivables” on our consolidated balance sheets. We also provide asset management, property management, leasing and other related services to our unconsolidated joint ventures and real estate funds. We recognized fee income of $10,783,000 and $5,586,000 for the three months ended March 31, 2022 and 2021, respectively, in connection with these agreements, which is included as a component of “fee and other income” on our consolidated statements of income. As of March 31, 2022 and December 31, 2021, amounts owed to us under these agreements aggregated $2,868,000 and $2,883,000, respectively, which are included as a component of “accounts and other receivables” on our consolidated balance sheets. Hamburg Trust Consulting HTC GmbH (“HTC”) We have an agreement with HTC, a licensed broker in Germany, to supervise selling efforts for our joint ventures and private equity real estate funds (or investments in feeder vehicles for these funds) to investors in Germany, including distribution of securitized notes of feeder vehicles for Fund X. Pursuant to this agreement, we have agreed to pay HTC for the costs incurred plus a mark-up of 10%. HTC is 100% owned by Albert Behler, our Chairman, Chief Executive Officer and President. We incurred costs aggregating $389,000 and $122,000 for the three months ended March 31, 2022 and 2021, respectively, in connection with this agreement. As of March 31, 2022 and December 31, 2021, we owed $389,000 and $523,000, respectively, to HTC under this agreement, which are included as a component of “accounts payable and accrued expenses” on our consolidated balance sheets. Mannheim Trust A subsidiary of Mannheim Trust leases office space at 712 Fifth Avenue, our 50.0% owned unconsolidated joint venture, pursuant to a lease agreement which expires in April 2023. Dr. Martin Bussmann (a member of our Board of Directors) is also a trustee and a director of Mannheim Trust. We recognized $91,000 in each of the three months ended March 31, 2022 and 2021 for our share of rental income pursuant to this lease. Due from Affiliates At March 31, 2022, we had a $49,316,000 note receivable from Fund X that bears interest at the Secured Overnight Financing Rate (“SOFR”) plus 220 basis points and is included as “due from affiliates” on our consolidated balance sheet.

Related Parties

3 Months Ended

Mar. 31, 2022

19.Related Parties

Management Agreements

We provide property management, leasing and other related services to certain properties owned by members of the Otto Family. We recognized fee income of $489,000 and $517,000 for the three months ended March 31, 2022 and 2021, respectively, in connection with these agreements, which is included as a component of “fee and other income” on our consolidated statements of income. As of March 31, 2022 and December 31, 2021, amounts owed to us under these agreements aggregated $752,000 and $484,000, respectively, which are included as a component of “accounts and other receivables” on our consolidated balance sheets.

We also provide asset management, property management, leasing and other related services to our unconsolidated joint ventures and real estate funds. We recognized fee income of $10,783,000 and $5,586,000 for the three months ended March 31, 2022 and 2021, respectively, in connection with these agreements, which is included as a component of “fee and other income” on our consolidated statements of income. As of March 31, 2022 and December 31, 2021, amounts owed to us under these agreements aggregated $2,868,000 and $2,883,000, respectively, which are included as a component of “accounts and other receivables” on our consolidated balance sheets.

Hamburg Trust Consulting HTC GmbH (“HTC”)

We have an agreement with HTC, a licensed broker in Germany, to supervise selling efforts for our joint ventures and private equity real estate funds (or investments in feeder vehicles for these funds) to investors in Germany, including distribution of securitized notes of feeder vehicles for Fund X. Pursuant to this agreement, we have agreed to pay HTC for the costs incurred plus a mark-up of 10%. HTC is 100% owned by Albert Behler, our Chairman, Chief Executive Officer and President. We incurred costs aggregating $389,000 and $122,000 for the three months ended March 31, 2022 and 2021, respectively, in connection with this agreement. As of March 31, 2022 and December 31, 2021, we owed $389,000 and $523,000, respectively, to HTC under this agreement, which are included as a component of “accounts payable and accrued expenses” on our consolidated balance sheets.

Mannheim Trust

A subsidiary of Mannheim Trust leases office space at 712 Fifth Avenue, our 50.0% owned unconsolidated joint venture, pursuant to a lease agreement which expires in April 2023. Dr. Martin Bussmann (a member of our Board of Directors) is also a trustee and a director of Mannheim Trust. We recognized $91,000 in each of the three months ended March 31, 2022 and 2021 for our share of rental income pursuant to this lease.

Due from Affiliates

At March 31, 2022, we had a $49,316,000 note receivable from Fund X that bears interest at the Secured Overnight Financing Rate (“SOFR”) plus 220 basis points and is included as “due from affiliates” on our consolidated balance sheet.