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Debt and Equity Transactions (Unaudited) Interest, Dividends and Maturities (Details) - USD ($) $ in Thousands, shares in Millions |  |  | 3 Months Ended
--- | --- | --- | ---
Apr. 29, 2016 | Jan. 05, 2016 | Mar. 31, 2016 | Mar. 31, 2015
Capitalized Interest [Line Items] |  |  |  |
Interest costs incurred |  |  | $ 228,000 | $ 210,000
Stock Issued During Period, Shares, New Issues |  | 210 |  |
Proceeds from Issuance of Common Stock, Gross |  | $ 1,970,000 |  |
Fees and Commissions |  | $ 20,000 |  |
Property, Plant, Equipment and Mining Development Costs, Net [Member] |  |  |  |
Capitalized Interest [Line Items] |  |  |  |
Interest costs capitalized |  |  | 20,000 | 45,000
Oil and Gas Properties Not Subject to Amortization [Member] |  |  |  |
Capitalized Interest [Line Items] |  |  |  |
Interest costs capitalized |  |  | $ 8,000 | $ 19,000
Subsequent Event [Member] |  |  |  |
Capitalized Interest [Line Items] |  |  |  |
Common Stock, Value of Shares Authorized for Issue in Transaction | $ 12,000 |  |  |

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- Definition Amount of fees and commissions from financial services and banking activities and correspondent clearing. Includes fees from depositor accounts, credit cards, merchant discounts, and fiduciary and trust activities, guarantee fees, investment advisory, management, and administrative fees, transfer agent fees, and insurance commissions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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