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Equity Method Investments (Details) - USD ($) $ in Millions | Sep. 30, 2015 | Mar. 31, 2015
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Schedule of Equity Method Investments [Line Items] |  |
Other Commitment, total projected investment for two joint ventures | $ 96.0 |
Equity Method Investment, Aggregate Cost | $ 30.9 |
CP LLC [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Equity Method Investment, Ownership Percentage |  | 50.00%
Equity Method Investment, Ownership Percentage by Other Investor |  | 50.00%
Rangeland Rio [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Equity Method Investment, Ownership Percentage |  | 33.00%
Equity Method Investment, Ownership Percentage by Other Investor |  | 67.00%

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- Definition The percentage of ownership of common stock or equity participation in the investee held by other investor accounted for under the equity method of accounting. + References No definition available. + Details
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- Definition This element represents the aggregate cost of investments accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Details
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