| Component: (Network and Table) | |
|---|---|
| Network | 2308301 - Disclosure - Asset Retirement Obligations (Tables) (http://www.cabotog.com/role/AssetRetirementObligationsTables)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0000858470 (http://www.sec.gov/CIK) | 
| Asset Retirement Obligation Disclosure [Abstract] | Period [Axis] | ||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2016-01-01 - 2016-12-31  | |||||||||||||||||||||||||||||||||||||||||||||||||||
Asset Retirement Obligation Disclosure [Abstract]  | |||||||||||||||||||||||||||||||||||||||||||||||||||
Asset Retirement Obligations  | Activity related to the Company's asset retirement obligations is as follows: 
  | ||||||||||||||||||||||||||||||||||||||||||||||||||