|
Commitments and Contingencies (Details Textual) (USD $)
In Millions, except Share data, unless otherwise specified |
12 Months Ended | 3 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2014
|
Sep. 30, 2014
|
Feb. 05, 2014
|
|
| Loss Contingencies [Line Items] | ||||||
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 300,000 | |||||
| Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 0.01 | |||||
| Loss Contingency, Damages Sought | 1.0 | |||||
| Operating leases | $ 5.8 | $ 1.1 | $ 0.9 | |||
| High Point [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Partners' Capital Account, Percentage | 95.00% | |||||
| AIM Midstream Holdings [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Partners' Capital Account, Percentage | 5.00% | |||||
| High Point [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Incentive Distribution Right Allocation | 85.02% | 85.02% | 100.00% | 100.00% | ||