v3.3.1.900

Commitments and Contingencies - Letters of Credit and Purchase Commitments - Additional Information (Detail) |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 17, 2015 USD ($) Metric_Ton | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 17, 2015 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Outstanding letters of credit |  | $ 81,900,000 | $ 82,300,000 |
Aggregate amount of payments made under long-term raw material purchase agreements |  |  | 80,100,000 |
Amount of raw material purchases |  | 245,300,000 |  |
Account payable for raw material purchases |  | $ 12,100,000 |  |
Ownership interest (as a percent) |  | 50.00% |  |
Eagle US 2 LLC [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Amount of capital committed in LACC | $ 225,000,000 |  |  |
Percentage of interest in LACC | 10.00% |  |  |
LACC,LLC [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Amount of annual capital committed in LACC |  |  |  | $ 50,000,000
Ethane Cracker [Member] | LACC,LLC [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Annual production capacity | Metric_Ton | 1,000,000 |  |  |
Maximum [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Terms of letters of credit |  | 1 year |  |
Maximum [Member] | Eagle US 2 LLC [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Percentage of ownership | 50.00% |  |  |
Minimum [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Terms of letters of credit |  | 1 month |  |
RS Cogen [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Ownership interest (as a percent) |  | 50.00% |  |
Future commitment per year to purchase electricity and steam from the joint venture |  | $ 23,500,000 |  |
Aggregate future commitment to purchase electricity and steam from the joint venture |  | 160,700,000 |  |
Purchases under future commitment |  | $ 25,000,000 | $ 25,800,000 |

X
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