|
Document And Entity Information
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Apr. 23, 2015
|
|
| Document Information [Line Items] | ||
| Document Type | 10-Q | |
| Amendment Flag | false | |
| Document Period End Date | Mar. 31, 2015 | |
| Document Fiscal Year Focus | 2015 | |
| Document Fiscal Period Focus | Q1 | |
| Entity Registrant Name | COLUMBIA PIPELINE PARTNERS LP/DE | |
| Entity Central Index Key | 0001420783 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Filer Category | Non-accelerated Filer | |
| Common Units [Member] | ||
| Document Information [Line Items] | ||
| Entity Units Outstanding | 53,833,107 | |
| Subordinated Units [Member] | ||
| Document Information [Line Items] | ||
| Entity Units Outstanding | 46,811,398 |