| Document and Entity Information Document and Entity Information | Oct. 31, 2019 | Oct. 31, 2019 |
| Document And Entity Information [Abstract] | ||
| Title of 12(b) Security | Common Shares of Beneficial Interest, $.01 par value | |
| Entity Incorporation, State or Country Code | TX | |
| Entity Central Index Key | 0000906345 | |
| Entity Emerging Growth Company | false | |
| Document Type | 8-K | |
| Document Period End Date | Oct. 31, 2019 | |
| Entity Registrant Name | CAMDEN PROPERTY TRUST | |
| Entity Address, Address Line One | 11 Greenway Plaza, Suite 2400 | |
| Entity Address, City or Town | Houston, | |
| Entity Address, State or Province | TX | |
| Entity Address, Postal Zip Code | 77046 | |
| City Area Code | -713 | |
| Local Phone Number | 354-2500 | |
| Entity File Number | 1-12110 | |
| Entity Tax Identification Number | 76-6088377 | |
| Trading Symbol | CPT | |
| Security Exchange Name | NYSE | |
| Amendment Flag | false | |
| Pre-commencement Tender Offer | false | |
| Pre-commencement Issuer Tender Offer | false | |
| Soliciting Material | false | |
| Written Communications | false |
