Business and Organization	6 Months Ended
Jun. 30, 2013
Organization Consolidation and Presentation Of Financial Statements [Abstract]
Business and Organization	1. Business and Organization NorthStar Healthcare Income, Inc. (the “Company”) was formed on October 5, 2010 as a Maryland corporation and intends to qualify as a real estate investment trust (“REIT”) beginning with the taxable year ending December 31, 2013. The Company was formed primarily to originate, acquire and asset manage a diversified portfolio of commercial real estate debt and equity investments in healthcare real estate, with a focus on the mid-acuity senior housing sector, which the Company defines as assisted living, memory care, skilled nursing and independent living facilities, that have an emphasis on private pay patients. The Company is externally managed by NorthStar Healthcare Income Advisor, LLC (the “Advisor”), and has no employees. The Advisor uses the investment professionals of NorthStar Realty Finance Corp. (the “Sponsor”) to manage the business. The Sponsor is a diversified commercial real estate investment and asset management company publicly traded on the New York Stock Exchange and was formed in October 2003. Substantially all business is conducted through NorthStar Healthcare Income Operating Partnership, LP, (the “Operating Partnership”). The Company is the sole general partner of the Operating Partnership. The initial limited partners of the Operating Partnership are the Advisor and NorthStar Healthcare Income OP Holdings, LLC (the “Special Unit Holder”). The Advisor invested $1,000 in the Operating Partnership in exchange for common units and the Special Unit Holder invested $1,000 in the Operating Partnership and has been issued a separate class of limited partnership units (the “Special Units”), which are collectively recorded as non-controlling interests on the consolidated balance sheets as of June 30, 2013 and December 31, 2012. As the Company accepts subscriptions for shares, it contributes substantially all of the net proceeds from its continuous, public offering to the Operating Partnership as a capital contribution. As of June 30, 2013, the Company’s limited partnership interest in the Operating Partnership was 93.14%. The Company’s charter authorizes the issuance of up to 400,000,000 shares of common stock with a par value of $0.01 per share and up to 50,000,000 shares of preferred stock with a par value of $0.01 per share. The board of directors of the Company is authorized to amend its charter, without the approval of the stockholders, to increase the aggregate number of authorized shares of capital stock or the number of shares of any class or series that the Company has authority to issue. On October 12, 2010, the Company issued 22,223 shares of common stock to a subsidiary of the Sponsor for $0.2 million. On August 7, 2012, the Company’s registration statement on Form S-11 with the Securities and Exchange Commission (the “SEC”) to offer a maximum of 110,526,315 shares of common stock in a continuous, public offering, of which up to 100,000,000 shares are being offered pursuant to the primary offering (the “Primary Offering”) and up to 10,526,315 shares pursuant to the distribution reinvestment plan (the “DRP”) and are herein collectively referred to as the Offering was declared effective. At that time, the Company retained NorthStar Realty Securities, LLC (the “Dealer Manager”), a subsidiary of the Sponsor, to serve as the dealer manager for the Primary Offering. The Dealer Manager is responsible for marketing the shares being offered pursuant to the Primary Offering. The board of directors of the Company have the right to reallocate shares between the Primary Offering and the DRP. On February 11, 2013, the Company commenced operations by satisfying the minimum offering requirement in its Primary Offering as a result of the Sponsor purchasing an additional 222,223 shares of common stock for $2.0 million. From inception through August 8, 2013, the Company raised gross proceeds of $4.9 million from the Offering.

Business and Organization

6 Months Ended

Jun. 30, 2013

Organization Consolidation and Presentation Of Financial Statements [Abstract]

1. Business and Organization

NorthStar Healthcare Income, Inc. (the “Company”) was formed on October 5, 2010 as a Maryland corporation and intends to qualify as a real estate investment trust (“REIT”) beginning with the taxable year ending December 31, 2013. The Company was formed primarily to originate, acquire and asset manage a diversified portfolio of commercial real estate debt and equity investments in healthcare real estate, with a focus on the mid-acuity senior housing sector, which the Company defines as assisted living, memory care, skilled nursing and independent living facilities, that have an emphasis on private pay patients. The Company is externally managed by NorthStar Healthcare Income Advisor, LLC (the “Advisor”), and has no employees. The Advisor uses the investment professionals of NorthStar Realty Finance Corp. (the “Sponsor”) to manage the business. The Sponsor is a diversified commercial real estate investment and asset management company publicly traded on the New York Stock Exchange and was formed in October 2003.

Substantially all business is conducted through NorthStar Healthcare Income Operating Partnership, LP, (the “Operating Partnership”). The Company is the sole general partner of the Operating Partnership. The initial limited partners of the Operating Partnership are the Advisor and NorthStar Healthcare Income OP Holdings, LLC (the “Special Unit Holder”). The Advisor invested $1,000 in the Operating Partnership in exchange for common units and the Special Unit Holder invested $1,000 in the Operating Partnership and has been issued a separate class of limited partnership units (the “Special Units”), which are collectively recorded as non-controlling interests on the consolidated balance sheets as of June 30, 2013 and December 31, 2012. As the Company accepts subscriptions for shares, it contributes substantially all of the net proceeds from its continuous, public offering to the Operating Partnership as a capital contribution. As of June 30, 2013, the Company’s limited partnership interest in the Operating Partnership was 93.14%.

The Company’s charter authorizes the issuance of up to 400,000,000 shares of common stock with a par value of $0.01 per share and up to 50,000,000 shares of preferred stock with a par value of $0.01 per share. The board of directors of the Company is authorized to amend its charter, without the approval of the stockholders, to increase the aggregate number of authorized shares of capital stock or the number of shares of any class or series that the Company has authority to issue.

On October 12, 2010, the Company issued 22,223 shares of common stock to a subsidiary of the Sponsor for $0.2 million. On August 7, 2012, the Company’s registration statement on Form S-11 with the Securities and Exchange Commission (the “SEC”) to offer a maximum of 110,526,315 shares of common stock in a continuous, public offering, of which up to 100,000,000 shares are being offered pursuant to the primary offering (the “Primary Offering”) and up to 10,526,315 shares pursuant to the distribution reinvestment plan (the “DRP”) and are herein collectively referred to as the Offering was declared effective. At that time, the Company retained NorthStar Realty Securities, LLC (the “Dealer Manager”), a subsidiary of the Sponsor, to serve as the dealer manager for the Primary Offering. The Dealer Manager is responsible for marketing the shares being offered pursuant to the Primary Offering. The board of directors of the Company have the right to reallocate shares between the Primary Offering and the DRP.

On February 11, 2013, the Company commenced operations by satisfying the minimum offering requirement in its Primary Offering as a result of the Sponsor purchasing an additional 222,223 shares of common stock for $2.0 million. From inception through August 8, 2013, the Company raised gross proceeds of $4.9 million from the Offering.