|
Acquisitions (Consideration Transferred) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 0 Months Ended |
|---|---|---|
|
Dec. 31, 2014
|
Oct. 14, 2014
|
|
| Business Acquisition [Line Items] | ||
| Useful life | 25 years | |
| Costar Midstream, L.L.C. [Member] | ||
| Business Acquisition [Line Items] | ||
| Cash | $ 265,383 | |
| Limited partner common units | 147,296 | |
| Total fair value of consideration | $ 412,679 |