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Long-Term Debt - Outstanding Long-Term Debt (Detail) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | $ 159,900 | $ 161,500
Capital Lease Obligations |  | 5,483 | 6,130
Total Long-term debt |  | 165,374 | 167,595
Less: current maturities |  | (9,127) | (9,109)
Total long-term debt, net of current maturities |  | 156,247 | 158,486
9.08% bond, due June 1, 2022 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt | [1] | 7,971 | 7,969
6.64% note, due October 31, 2017 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | 8,182 | 8,182
5.50% note, due October 12, 2020 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | 12,000 | 12,000
5.93% note, due October 31, 2023 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | 25,500 | 27,000
5.68% note, due June 30, 2026 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | 29,000 | 29,000
Uncollateralized Senior Notes Due On May Two Thousand Twenty Eight [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | 7,000 | 7,000
Uncollateralized Senior Note Two Due on December Two Thousand Twenty Eight [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | 20,000 | 20,000
Uncollateralized Senior Notes Due On Two Thousand Twenty Nine [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | 50,000 | 50,000
Promissory note [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total long-term debt |  | $ 238 | $ 314
[1] | FPU secured first mortgage bonds are guaranteed by Chesapeake.

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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