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Business and Organization	6 Months Ended
	Jun. 30, 2015
Business and Organization [Abstract]
Business and Organization	Business and Organization Business—iStar Financial Inc., or the "Company," doing business as "iStar", finances, invests in and develops real estate and real estate related projects as part of its fully-integrated investment platform. The Company has invested more than $35 billion over the past two decades and is structured as a real estate investment trust, or "REIT", with a diversified portfolio focused on larger assets located in major metropolitan markets. The Company's primary business segments are real estate finance, net lease, operating properties and land & development (see Note 16). Organization—The Company began its business in 1993 through the management of private investment funds and became publicly traded in 1998. Since that time, the Company has grown through the origination of new investments, as well as through corporate acquisitions.

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This element represents nature of an entity's business, the major products or services it sells or provides and its principal markets. It also discloses background of the entity.

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