Segment Reporting - Summary of Assets by Segment (Details) - USD ($) $ in Thousands		Jun. 30, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Assets	[1]	$ 2,023,322	$ 2,141,207
Operating Segments
Segment Reporting Information [Line Items]
Assets		2,023,322	2,141,207
Operating Segments | Direct Investments - Net Lease Segment
Segment Reporting Information [Line Items]
Assets		364,525	365,789
Operating Segments | Direct Investments - Operating Segment
Segment Reporting Information [Line Items]
Assets		1,312,408	1,420,023
Operating Segments | Unconsolidated Investments
Segment Reporting Information [Line Items]
Assets		231,095	268,892
Operating Segments | Debt and Securities
Segment Reporting Information [Line Items]
Assets		55,559	56,099
Operating Segments | Corporate
Segment Reporting Information [Line Items]
Assets		$ 59,735	$ 30,404

[1] Represents the consolidated assets and liabilities of NorthStar Healthcare Income Operating Partnership, LP (the “Operating Partnership”). The Operating Partnership is a consolidated variable interest entity (“VIE”), of which the Company is the sole general partner and owns approximately 99.99%. As of June 30, 2020, the Operating Partnership includes $0.6 billion and $0.5 billion of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. Refer to Note 2, “Summary of Significant Accounting Policies.”