Commitments and Contingencies - Legal Proceedings - Additional Information (Detail) |
3 Months Ended |
|---|---|
|
Mar. 31, 2016
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 |