Amount of debt with maximum interest rate

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- Definition

Date that the percentage of debt with a maximum interest rate begins to decrease quarterly

+ References

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- Definition

Fixed charge coverage ratio

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- Definition

Leverage Ratio

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No definition available.

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- Definition

Loan Initiation Amortization Period - Years

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- Definition

Percentage decrease in amount of debt with maximum interest rate

+ References

No definition available.

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- Definition

Total laquidity

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No definition available.

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- Definition

The net increase(decrease) in interest income during the period representing the allocation of deferred loan origination fees less deferred loan origination costs using the effective interest method over the term of the debt arrangement to which they pertain taking into account the effect of prepayments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Loan Origination Costs
-URI http://asc.fasb.org/extlink&oid=6510860

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Maximum 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

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

+ Details

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Balance Type:	credit
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- Definition

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

+ References

+ Details

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- Definition

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

+ References

+ Details

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- Definition

Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for financing purchases of goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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- Definition

Fair value of the amount outstanding under the credit facility.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

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Bank Debt (Narrative) (Details) $ in Millions	12 Months Ended
Bank Debt (Narrative) (Details) $ in Millions	Dec. 31, 2016 USD ($) agreement	Mar. 18, 2016 USD ($)	Mar. 17, 2016 USD ($)
Debt Instrument [Line Items]
Credit agreement, amount outstanding	$ 239.0
Borrowing capacity	63.0
Maximum annual capex	30.0
Total laquidity	$ 82.0
Fixed charge coverage ratio	211.00%
Leverage ratio	295.00%
Number of interest rate swaps \| agreement	2
Fair value (liability) of interest rate swaps	$ (0.2)
Fair value of long term asset	0.3
Fair value of current liability	0.5
PNC Bank [Member]
Debt Instrument [Line Items]
Closing costs of debt	$ 9.1
Loan initiation amortization period	5 years
Credit Agreement [Member]
Debt Instrument [Line Items]
Intererst rate effective percentage	4.78%
Debt maturity date	Aug. 29, 2019
Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio	125.00%
Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio			275.00%
Maximum [Member] \| June 30, 2018 and September 30, 2018 [Member]
Debt Instrument [Line Items]
Leverage ratio	400.00%
Maximum [Member] \| June 30, 2017 through March 31, 2018 [Member]
Debt Instrument [Line Items]
Leverage ratio	425.00%
Maximum [Member] \| September 30, 2016 through March 31, 2017 [Member]
Debt Instrument [Line Items]
Leverage ratio	450.00%
London Interbank Offered Rate (LIBOR) [Member] \| Credit Agreement [Member]
Debt Instrument [Line Items]
Debt, interest rate spread on variable rate	4.00%
London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt, interest rate spread on variable rate	2.25%
London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt, interest rate spread on variable rate	4.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit agreement, amount outstanding	$ 137.0
Revolving Credit Facility [Member] \| PNC Bank [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 200.0	$ 250.0
Term Loan [Member]
Debt Instrument [Line Items]
Credit agreement, amount outstanding	$ 102.0
Sunrise Coal [Member] \| PNC Bank [Member]
Debt Instrument [Line Items]
Percentage decrease in amount of debt with maximum interest rate per quarter after commencement date	10.00%
Date that the percentage of debt with a maximum interest rate begins to decrease quarterly	Mar. 31, 2016
Sunrise Coal [Member] \| Maximum [Member] \| PNC Bank [Member]
Debt Instrument [Line Items]
Interest rate maximum	5.00%
Sunrise Coal [Member] \| Revolving Credit Facility [Member] \| PNC Bank [Member]
Debt Instrument [Line Items]
Amount of debt with maximum interest rate	$ 100.0