DESCRIPTION OF BUSINESS	3 Months Ended
Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS	DESCRIPTION OF BUSINESS Ventas, Inc. (together with its subsidiaries, unless otherwise indicated or except where the context otherwise requires, “we,” “us” or “our”), an S&P 500 company, is a real estate investment trust (“REIT”) with a highly diversified portfolio of seniors housing and healthcare properties located throughout the United States, Canada and the United Kingdom. As of March 31, 2015, we owned more than 1,600 properties (including properties classified as held for sale), consisting of seniors housing communities, medical office buildings (“MOBs”), skilled nursing and other facilities, and hospitals, and we had one property under development. Our company was originally founded in 1983 and is currently headquartered in Chicago, Illinois. We primarily invest in seniors housing and healthcare properties through acquisitions and lease our properties to unaffiliated tenants or operate them through independent third-party managers. As of March 31, 2015, we leased a total of 952 properties (excluding MOBs and properties classified as held for sale) to various healthcare operating companies under “triple-net” or “absolute-net” leases that obligate the tenants to pay all property-related expenses, including maintenance, utilities, repairs, taxes, insurance and capital expenditures, and we engaged independent operators, such as Atria Senior Living, Inc. (“Atria”) and Sunrise Senior Living, LLC (together with its subsidiaries, “Sunrise”), to manage a total of 305 of our seniors housing communities for us pursuant to long-term management agreements. Our two largest tenants, Brookdale Senior Living Inc. (together with its subsidiaries, “Brookdale Senior Living”) and Kindred Healthcare, Inc. (together with its subsidiaries, “Kindred”) leased from us 145 properties (excluding six properties included in investments in unconsolidated entities) and 83 properties, respectively, as of March 31, 2015. Through our Lillibridge Healthcare Services, Inc. (“Lillibridge”) subsidiary and our ownership interest in PMB Real Estate Services LLC (“PMBRES”), we also provide MOB management, leasing, marketing, facility development and advisory services to highly rated hospitals and health systems throughout the United States. In addition, from time to time, we make secured and unsecured loans and other investments relating to seniors housing and healthcare operators or properties.

DESCRIPTION OF BUSINESS

Ventas, Inc. (together with its subsidiaries, unless otherwise indicated or except where the context otherwise requires, “we,” “us” or “our”), an S&P 500 company, is a real estate investment trust (“REIT”) with a highly diversified portfolio of seniors housing and healthcare properties located throughout the United States, Canada and the United Kingdom. As of March 31, 2015, we owned more than 1,600 properties (including properties classified as held for sale), consisting of seniors housing communities, medical office buildings (“MOBs”), skilled nursing and other facilities, and hospitals, and we had one property under development. Our company was originally founded in 1983 and is currently headquartered in Chicago, Illinois.

We primarily invest in seniors housing and healthcare properties through acquisitions and lease our properties to unaffiliated tenants or operate them through independent third-party managers. As of March 31, 2015, we leased a total of 952 properties (excluding MOBs and properties classified as held for sale) to various healthcare operating companies under “triple-net” or “absolute-net” leases that obligate the tenants to pay all property-related expenses, including maintenance, utilities, repairs, taxes, insurance and capital expenditures, and we engaged independent operators, such as Atria Senior Living, Inc. (“Atria”) and Sunrise Senior Living, LLC (together with its subsidiaries, “Sunrise”), to manage a total of 305 of our seniors housing communities for us pursuant to long-term management agreements. Our two largest tenants, Brookdale Senior Living Inc. (together with its subsidiaries, “Brookdale Senior Living”) and Kindred Healthcare, Inc. (together with its subsidiaries, “Kindred”) leased from us 145 properties (excluding six properties included in investments in unconsolidated entities) and 83 properties, respectively, as of March 31, 2015.

Through our Lillibridge Healthcare Services, Inc. (“Lillibridge”) subsidiary and our ownership interest in PMB Real Estate Services LLC (“PMBRES”), we also provide MOB management, leasing, marketing, facility development and advisory services to highly rated hospitals and health systems throughout the United States. In addition, from time to time, we make secured and unsecured loans and other investments relating to seniors housing and healthcare operators or properties.