Related Party Arrangements - Additional Information (Detail) - USD ($)		1 Months Ended	12 Months Ended
		Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014	Jun. 30, 2013
Related Party Transaction [Line Items]
Selling commissions			7.00%
Marketing support fees			3.00%
Investment service fee as percentage of purchase price of properties			1.85%
Monthly asset management fee as Percentage of real estate value			0.08334%
Financing coordination fee as percentage of gross amount of refinancing			1.00%
Advisor disposition fee as percentage of competitive real estate commission			50.00%
Advisor disposition fee as percentage of sales price of property			1.00%
Advisor disposition fee as percentage of sales price of asset			1.00%
Annualized return of investment			6.00%
Oversight fee as percentage of gross revenues from property managed			1.00%
Construction management fee as percentage of hard and soft costs			5.00%
Initial purchase price of property percentage			10.00%
Property management fees	[1],[2]		$ 417,000	$ 418,000
Investment services fees	[3]		$ 739,000	18,561,000		$ 18,553,000
Operating expenses reimbursement as percentage average invested assets			2.00%
Operating expenses reimbursement percentage of net income			25.00%
Bank deposits				100,000
Purchase price			$ 28,588,000	880,873,000
Total construction loan							$ 6,200,000
Fieldstone Memory Care
Related Party Transaction [Line Items]
Purchase price		$ 12,400,000		12,400,000	[4]
Property Manager
Related Party Transaction [Line Items]
Property management fees			$ 1,000,000
Advisor And Property Manager
Related Party Transaction [Line Items]
Annualized return of investment			6.00%
CNL Capital Markets Corp
Related Party Transaction [Line Items]
Investment services fees			$ 900,000	600,000		$ 400,000
Co-venture partners
Related Party Transaction [Line Items]
Payment to co-venture partner				$ 2,000
Receivable amount recorded			$ 0
Single Tenant Properties
Related Party Transaction [Line Items]
Property management fees as percentage of annual gross rental revenue			2.00%
Multi Tenant Properties
Related Party Transaction [Line Items]
Property management fees as percentage of annual gross rental revenue			4.00%

[1] Amounts are recorded as due to related parties in the accompanying consolidated balance sheets.

[2] For the years ended December 31, 2016, 2015 and 2014, the Company incurred approximately $5.1 million, $3.9 million and $2.9 million, respectively, in property and construction management fees payable to the Property Manager of which approximately $0.9 million, $0.7 million and $0.9 million, respectively, in construction management fees were capitalized and included in real estate under development in the accompanying consolidated balance sheets.

[3] For the year ended December 31, 2016, the Company incurred approximately $0.7 million in investment services fees of which approximately $0.2 million, was capitalized and included in real estate under development in the accompanying consolidated balance sheets. For the year ended December 31, 2015, the Company incurred approximately $18.6 million in investment service fees of which approximately $2.3 million was capitalized and included in real estate under development. For the year ended December 31, 2014, the Company incurred approximately $18.6 million in investment service fees of which approximately $1.8 million was capitalized and included in real estate under development. Investment service fees, that are not capitalized, are recorded as acquisition fees and expenses in the accompanying consolidated statements of operations.

[4] This represents a single property or portfolio acquisition that is not considered material to the Company and as such no pro forma financial information has been included related to this property.