Debt Instrument Issuance At Par Percentage

No definition available.

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- Definition

Disposal Group, Including Discontinued Operations, Debt

+ References

No definition available.

+ Details

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- Definition

Carrying amount of long-term debt and long-term debt affiliate, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

No definition available.

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- Definition

Ratio of EBITDA to consolidated fixed charges.

+ References

No definition available.

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ 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 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ 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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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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- Definition

For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

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 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ 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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- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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Debt and Debt - Affiliate - Long-Term Debt (Detail)	9 Months Ended
Debt and Debt - Affiliate - Long-Term Debt (Detail)	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Oct. 31, 2014 USD ($)	Sep. 30, 2013 USD ($)
Debt Instrument [Line Items]
Principal balance	$ 1,215,898,000	$ 1,387,073,000
Net unamortized debt discount	(1,511,000)	(2,077,000)
Net unamortized debt issuance costs	(13,806,000)	(14,040,000)
Total debt	1,200,581,000	1,370,956,000
Less - current portion of long term debt	158,597,000	80,745,000
Less: debt classified as non-current liabilities of discontinued operations	0	83,600,000
Total long-term debt	$ 1,041,984,000	1,206,611,000
NRP LP
Debt Instrument [Line Items]
Rate of senior notes (percent)					9.125%
Floating rate revolving credit facility				$ 125,000,000	$ 300,000,000
Senior Note issue percentage				99.50%	99.007%
NRP LP \| 9.125% senior notes, with semi-annual interest payments in April and October, maturing October 2018
Debt Instrument [Line Items]
Rate of senior notes (percent)	9.125%
Principal balance	$ 425,000,000	425,000,000
Opco
Debt Instrument [Line Items]
Ratio Of Ebitda To Consolidated Fixed Charges	3.5
Opco \| Floating Rate Revolving Credit Facility Due October Two Thousand Seventeen [Member]
Debt Instrument [Line Items]
Floating rate revolving credit facility			$ 300,000,000.0
Principal balance		290,000,000
Opco \| Floating Rate Revolving Credit Facility Due June Two Thousand Eighteen [Member]
Debt Instrument [Line Items]
Floating rate revolving credit facility	$ 260,000,000.0
Principal balance	260,000,000
Total debt	$ 260,000,000
Opco \| 4.91% senior notes, with semi-annual interest payments in June and December, with annual principal payments in June, maturing in June 2018
Debt Instrument [Line Items]
Rate of senior notes (percent)	4.91%
Principal balance	$ 9,233,000	13,850,000
Opco \| 8.38% senior notes, with semi-annual interest payments in March and September, with annual principal payments in March, maturing in March 2019
Debt Instrument [Line Items]
Rate of senior notes (percent)	8.38%
Principal balance	$ 64,286,000	85,714,000
Opco \| 5.05% senior notes, with semi-annual interest payments in January and July, with annual principal payments in July, maturing in July 2020
Debt Instrument [Line Items]
Rate of senior notes (percent)	5.05%
Principal balance	$ 30,769,000	38,462,000
Opco \| 5.31% utility local improvement obligation, with annual principal and interest payments, maturing in March 2021
Debt Instrument [Line Items]
Rate of senior notes (percent)	5.31%
Principal balance	$ 961,000	1,153,000
Opco \| 5.55% senior notes, with semi-annual interest payments in June and December, with annual principal payments in June, maturing in June 2023
Debt Instrument [Line Items]
Rate of senior notes (percent)	5.55%
Principal balance	$ 18,900,000	21,600,000
Opco \| 4.73% senior notes, with semi-annual interest payments in June and December, with scheduled principal payments beginning December 2014, maturing in December 2023
Debt Instrument [Line Items]
Rate of senior notes (percent)	4.73%
Principal balance	$ 60,000,000	60,000,000
Opco \| 5.82% senior notes, with semi-annual interest payments in March and September, with annual principal payments in March, maturing in March 2024
Debt Instrument [Line Items]
Rate of senior notes (percent)	5.82%
Principal balance	$ 120,000,000	135,000,000
Opco \| 8.92% senior notes, with semi-annual interest payments in March and September, with scheduled principal payments beginning March 2014, maturing in March 2024
Debt Instrument [Line Items]
Rate of senior notes (percent)	8.92%
Principal balance	$ 36,364,000	40,909,000
Opco \| 5.03% senior notes, with semi-annual interest payments in June and December, with scheduled principal payments beginning December 2014, maturing in December 2026
Debt Instrument [Line Items]
Rate of senior notes (percent)	5.03%
Principal balance	$ 148,077,000	148,077,000
Opco \| 5.18% senior notes, with semi-annual interest payments in June and December, with scheduled principal payments beginning December 2014, maturing in December 2026
Debt Instrument [Line Items]
Rate of senior notes (percent)	5.18%
Principal balance	$ 42,308,000	42,308,000
NRP Oil and Gas \| Reserve Based Revolving Credit Facility Due 2019
Debt Instrument [Line Items]
Principal balance	0	$ 85,000,000
Senior Notes Offering Price One [Member] \| NRP LP \| 9.125% senior notes, with semi-annual interest payments in April and October, maturing October 2018
Debt Instrument [Line Items]
Floating rate revolving credit facility	$ 300,000,000
Senior Note issue percentage	99.007%
Senior Notes Offering Price Two [Member] \| NRP LP \| 9.125% senior notes, with semi-annual interest payments in April and October, maturing October 2018
Debt Instrument [Line Items]
Floating rate revolving credit facility	$ 125,000,000
Senior Note issue percentage	99.50%