Related Person Transactions	12 Months Ended
Dec. 31, 2019
Related Party Transactions [Abstract]
Related Person Transactions	Related Person Transactions The following discussion includes a description of our related person transactions for the years ended December 31, 2019, 2018 and 2017. Two North Riverside Plaza Joint Venture Limited Partnership: We have a lease with Two North Riverside Plaza Joint Venture Limited Partnership, an entity associated with Mr. Zell, our Chairman, to occupy office space on the twentieth and twenty-first floors of Two North Riverside Plaza in Chicago, Illinois (20th/21st Floor Office Lease). The initial term of the lease is approximately five years, expiring December 2020, with one 5-year renewal option. We made improvements to the office space utilizing the $0.7 million tenant improvement allowance pursuant to the lease. In connection with the 20th/21st Floor Office Lease, we also have a storage lease with Two North Riverside Plaza Joint Venture Limited Partnership for storage space in the basement of Two North Riverside Plaza. The storage lease expires December 31, 2020; however, each party has the right to terminate on 30 days' prior written notice. During the years ended December 31, 2019, 2018 and 2017, we recognized expense of $0.9 million, $0.8 million and $0.8 million, respectively, pursuant to the 20th/21st Floor Office Lease and the related storage lease. The future minimum lease payments scheduled to be paid by us during the current terms of this lease as of December 31, 2019 are $0.9 million in 2020. As of December 31, 2019 and 2018, we did not have any amounts due to Two North Riverside Plaza Joint Venture Limited Partnership pursuant to the 20th/21st Floor Office Lease and the related storage space.

Related Person Transactions

12 Months Ended

Dec. 31, 2019

The following discussion includes a description of our related person transactions for the years ended December 31, 2019, 2018 and 2017.

Two North Riverside Plaza Joint Venture Limited Partnership: We have a lease with Two North Riverside Plaza Joint Venture Limited Partnership, an entity associated with Mr. Zell, our Chairman, to occupy office space on the twentieth and twenty-first floors of Two North Riverside Plaza in Chicago, Illinois (20th/21st Floor Office Lease). The initial term of the lease is approximately five years, expiring December 2020, with one 5-year renewal option. We made improvements to the office space utilizing the $0.7 million tenant improvement allowance pursuant to the lease. In connection with the 20th/21st Floor Office Lease, we also have a storage lease with Two North Riverside Plaza Joint Venture Limited Partnership for storage space in the basement of Two North Riverside Plaza. The storage lease expires December 31, 2020; however, each party has the right to terminate on 30 days' prior written notice. During the years ended December 31, 2019, 2018 and 2017, we recognized expense of $0.9 million, $0.8 million and $0.8 million, respectively, pursuant to the 20th/21st Floor Office Lease and the related storage lease. The future minimum lease payments scheduled to be paid by us during the current terms of this lease as of December 31, 2019 are $0.9 million in 2020. As of December 31, 2019 and 2018, we did not have any amounts due to Two North Riverside Plaza Joint Venture Limited Partnership pursuant to the 20th/21st Floor Office Lease and the related storage space.