Commitments and Contingencies - Legal Proceedings - Additional Information (Detail) |
12 Months Ended |
|---|---|
|
Dec. 31, 2015
Plaintiff
| |
| Calcasieu River Estuary in Lake Charles Louisiana [Member] | |
| Loss Contingencies [Line Items] | |
| Number of individuals that have filed lawsuits against the Company | 2,607 |