| Document and Entity Information | Mar. 30, 2022 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001496454 |
| Document Type | 8-K |
| Document Period End Date | Mar. 30, 2022 |
| Entity Registrant Name | CNL Healthcare Properties, Inc. |
| Entity Incorporation State Country Code | MD |
| Entity File Number | 000-54685 |
| Entity Tax Identification Number | 27-2876363 |
| Entity Address, Address Line One | 450 South Orange Ave. |
| Entity Address, City or Town | Orlando |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 32801 |
| City Area Code | (407) |
| Local Phone Number | 650-1000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
