Amount of maximum capital commitments in joint venture.

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- Definition

Equity Method Investee Process Steam Combined Cycle Natural Gas Fired Cogeneration Facility Production Capacity

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No definition available.

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- Definition

Joint venture ownership percentage.

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No definition available.

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- Definition

Joint venture potential ownership interest.

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- Definition

Represents the minimum amount that the entity agreed to spend per year under the long-term purchase commitment.

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No definition available.

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Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The minimum amount the entity agreed to spend under the long-term purchase commitment.

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No definition available.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

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Investments - Additional Information (Detail)		3 Months Ended		6 Months Ended
Investments - Additional Information (Detail)	Jun. 17, 2015 USD ($)	Jun. 30, 2016 USD ($) MW	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) MW	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Eagle US 2 LLC [Member]
Schedule of Investments [Line Items]
Amount of capital committed in LACC	$ 225,000,000
Percentage of interest in LACC	10.00%
Other Assets [Member]
Schedule of Investments [Line Items]
Investment in LACC		$ 34,400,000		$ 34,400,000		$ 14,900,000
Maximum [Member] \| Eagle US 2 LLC [Member]
Schedule of Investments [Line Items]
Percentage of ownership	50.00%
TCI [Member]
Schedule of Investments [Line Items]
Ownership interest (as a percent)		60.00%		60.00%
RS Cogen [Member]
Schedule of Investments [Line Items]
Ownership interest (as a percent)		50.00%		50.00%
Production capacity of combined cycle natural gas-fired cogeneration facility in Lake Charles, Louisiana (in megawatt) \| MW		425		425
RS Cogen [Member] \| Chlorovinyls [Member]
Schedule of Investments [Line Items]
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		$ 147,500,000		147,500,000
Purchases under future commitment		$ 6,600,000	$ 6,400,000	$ 13,200,000	$ 12,900,000