| Cover Page | Dec. 06, 2024 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Dec. 06, 2024 |
| Entity Registrant Name | National Healthcare Properties, Inc. |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 001-39153 |
| Entity Tax Identification Number | 38-3888962 |
| Entity Address, Address Line One | 540 Madison Ave |
| Entity Address, Address Line Two | 27th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10022 |
| City Area Code | 332 |
| Local Phone Number | 258-8770 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001561032 |
| Series A Cumulative Redeemable Perpetual Preferred Stock | |
| Document Information [Line Items] | |
| Title of 12(b) Security | 7.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.01 par value per share |
| Trading Symbol | HTIA |
| Security Exchange Name | NASDAQ |
| Series B Cumulative Redeemable Perpetual Preferred Stock | |
| Document Information [Line Items] | |
| Title of 12(b) Security | 7.125% Series B Cumulative Redeemable Perpetual Preferred Stock, $0.01 par value per share |
| Trading Symbol | HTIBP |
| Security Exchange Name | NASDAQ |
