Acquisition, Redevelopments, Developments, and Service Agreement	12 Months Ended
Dec. 31, 2018
Acquisition, Redevelopments, and Developments [Abstract]
Acquisition, Redevelopments, Developments, and Service Agreement [Text Block]	Acquisition, Partial Disposition of Ownership Interests, Redevelopments, Developments, and Service Agreement Acquisition Country Club Plaza In March 2016, a joint venture that we formed with The Macerich Company acquired Country Club Plaza, a mixed-use retail and office property in Kansas City, Missouri, from Highwood Properties for $660 million ($330 million at TRG's share) in cash, excluding transaction costs. We have a 50% ownership interest in the center, which is jointly managed by both companies. Our ownership interest in the center is accounted for as an Unconsolidated Joint Venture under the equity method. The joint venture determined the fair value of assets acquired and liabilities assumed upon acquisition. Also, in March 2016, a 10-year, $320 million ($160 million at TRG's share) non-recourse financing was completed for this center. The proceeds from the financing were distributed to the joint venture partners based on the partnership agreement ownership percentages. In March 2017, the joint venture sold the Valencia Place office tower at Country Club Plaza for $75.2 million ($37.6 million at TRG's share), which was a component of the mixed-use property acquired. Partial Disposition of Ownership Interests In February 2019, we announced agreements to sell 50% of our interests in Starfield Hanam, CityOn.Xi’an and CityOn.Zhengzhou to funds managed by The Blackstone Group L.P. (Blackstone). Following the transactions, which are subject to customary closing conditions and are expected to close throughout 2019, we will retain a 17.15% ownership interest in Starfield Hanam, a 25% ownership interest in CityOn.Xi'an, and a 24.5% ownership interest in CityOn.Zhengzhou. We will remain the partner responsible for the joint management of the three shopping centers, with Blackstone paying a property service fee. The interests to be sold are valued at $480 million, with net cash proceeds expected to be about $315 million, after transaction costs and the allocation to Blackstone of its share of third-party debt. Also, we may receive up to an additional $50 million of consideration based on the 2019 performance of the three assets. Redevelopments We substantially completed our redevelopment project at Beverly Center in November 2018. We expect some capital spending at Beverly Center to continue into 2019 as certain costs are incurred subsequent to the project's completion, including construction on certain tenant spaces. We have an ongoing redevelopment project at The Mall at Green Hills, which is expected to be completed in 2019. This redevelopment project is expected to cost approximately $200 million. As of December 31, 2018, our total capitalized costs related to this redevelopment project were $144.5 million. U.S. Development International Market Place International Market Place, a shopping center located in Waikiki, Honolulu, Hawaii, opened in August 2016. Asia Developments Operating Centers We have opened three shopping centers in Asia: CityOn.Xi’an, located in Xi’an, China; Starfield Hanam, located in Hanam, South Korea; and CityOn.Zhengzhou, located in Zhengzhou, China. The shopping centers opened in April 2016, September 2016, and March 2017, respectively (Note 5). These investments are classified within Investment in Unconsolidated Joint Ventures on the Consolidated Balance Sheet. South Korea Projects We have partnered with Shinsegae Group, our partner in Starfield Hanam, to build, lease, and manage Starfield Anseong, an approximately 1.1 million square foot shopping center in Anseong, Gyeonggi Province, South Korea. We expect to beneficially own a 24.5% interest in the project; however we currently own and are funding 49% of the project until an additional capital partner is admitted. The shopping center is scheduled to open in late 2020. As of December 31, 2018, we have invested $97.1 million in the project, after cumulative currency translation adjustments. This investment is classified within Investment in Unconsolidated Joint Ventures on the Consolidated Balance Sheet. We were previously exploring an additional development opportunity in South Korea with Shinsegae Group. In March 2017, we made a refundable deposit of $11.0 million relating to a potential development site. After performing due diligence, we decided not to proceed with the project. The deposit, including a 5% return, was returned to us in November 2017. Service Agreement The Shops at Crystals In April 2016, the third party leasing agreement for The Shops at Crystals was terminated in connection with a change in ownership of the center. As a result, we recognized management, leasing, and development services revenue for the lump sum payment of $21.7 million received in May 2016 in connection with the termination.

Acquisition, Partial Disposition of Ownership Interests, Redevelopments, Developments, and Service Agreement

Acquisition

Country Club Plaza

In March 2016, a joint venture that we formed with The Macerich Company acquired Country Club Plaza, a mixed-use retail and office property in Kansas City, Missouri, from Highwood Properties for $660 million ($330 million at TRG's share) in cash, excluding transaction costs. We have a 50% ownership interest in the center, which is jointly managed by both companies. Our ownership interest in the center is accounted for as an Unconsolidated Joint Venture under the equity method. The joint venture determined the fair value of assets acquired and liabilities assumed upon acquisition. Also, in March 2016, a 10-year, $320 million ($160 million at TRG's share) non-recourse financing was completed for this center. The proceeds from the financing were distributed to the joint venture partners based on the partnership agreement ownership percentages. In March 2017, the joint venture sold the Valencia Place office tower at Country Club Plaza for $75.2 million ($37.6 million at TRG's share), which was a component of the mixed-use property acquired.

Partial Disposition of Ownership Interests

In February 2019, we announced agreements to sell 50% of our interests in Starfield Hanam, CityOn.Xi’an and CityOn.Zhengzhou to funds managed by The Blackstone Group L.P. (Blackstone). Following the transactions, which are subject to customary closing conditions and are expected to close throughout 2019, we will retain a 17.15% ownership interest in Starfield Hanam, a 25% ownership interest in CityOn.Xi'an, and a 24.5% ownership interest in CityOn.Zhengzhou. We will remain the partner responsible for the joint management of the three shopping centers, with Blackstone paying a property service fee. The interests to be sold are valued at $480 million, with net cash proceeds expected to be about $315 million, after transaction costs and the allocation to Blackstone of its share of third-party debt. Also, we may receive up to an additional $50 million of consideration based on the 2019 performance of the three assets.

Redevelopments

We substantially completed our redevelopment project at Beverly Center in November 2018. We expect some capital spending at Beverly Center to continue into 2019 as certain costs are incurred subsequent to the project's completion, including construction on certain tenant spaces.

We have an ongoing redevelopment project at The Mall at Green Hills, which is expected to be completed in 2019. This redevelopment project is expected to cost approximately $200 million. As of December 31, 2018, our total capitalized costs related to this redevelopment project were $144.5 million.

U.S. Development

International Market Place

International Market Place, a shopping center located in Waikiki, Honolulu, Hawaii, opened in August 2016.

Asia Developments

Operating Centers

We have opened three shopping centers in Asia: CityOn.Xi’an, located in Xi’an, China; Starfield Hanam, located in Hanam, South Korea; and CityOn.Zhengzhou, located in Zhengzhou, China. The shopping centers opened in April 2016, September 2016, and March 2017, respectively (Note 5). These investments are classified within Investment in Unconsolidated Joint Ventures on the Consolidated Balance Sheet.

South Korea Projects

We have partnered with Shinsegae Group, our partner in Starfield Hanam, to build, lease, and manage Starfield Anseong, an approximately 1.1 million square foot shopping center in Anseong, Gyeonggi Province, South Korea. We expect to beneficially own a 24.5% interest in the project; however we currently own and are funding 49% of the project until an additional capital partner is admitted. The shopping center is scheduled to open in late 2020. As of December 31, 2018, we have invested $97.1 million in the project, after cumulative currency translation adjustments. This investment is classified within Investment in Unconsolidated Joint Ventures on the Consolidated Balance Sheet.

We were previously exploring an additional development opportunity in South Korea with Shinsegae Group. In March 2017, we made a refundable deposit of $11.0 million relating to a potential development site. After performing due diligence, we decided not to proceed with the project. The deposit, including a 5% return, was returned to us in November 2017.

Service Agreement

The Shops at Crystals

In April 2016, the third party leasing agreement for The Shops at Crystals was terminated in connection with a change in ownership of the center. As a result, we recognized management, leasing, and development services revenue for the lump sum payment of $21.7 million received in May 2016 in connection with the termination.