Debt Instrument, Covenant Terms, Aggregate Principal Amount Related to Payment Defaults or Accelerations

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- Definition

Debt Instrument, Covenant Terms, Amount of Failure to Pay Final Judgments

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No definition available.

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- Definition

Debt Instrument, Covenant Terms, Percentage of Principal Amount Outstanding

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- Definition

Debt Instrument, Covenant Terms, Period after Notice to Comply with Agreements in Indenture

+ References

No definition available.

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- Definition

Debt Instrument, Covenant Terms, Period after Notice to comply with Reporting Obligations

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No definition available.

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- Definition

Debt Instrument, Covenant Terms, Period for Failure to Pay Final Judgments

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No definition available.

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- Definition

Debt Instrument, Covenant Terms, Period of Default when Due of Interest

+ References

No definition available.

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- Definition

Debt Instrument, Redemption Price, Percentage of Aggregate Principal Amount of Notes Outstanding After Redemption

+ References

No definition available.

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- Definition

Line of credit amendment date.

+ References

No definition available.

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- Definition

Line of credit facility amended maximum borrowing capacity.

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No definition available.

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- Definition

Line of credit additional interest rate.

+ References

No definition available.

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- Definition

Line of Credit Facility, Covenant, Debt to EBITDA Ratio

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No definition available.

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- Definition

Percentage of reserves required to maintain.

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No definition available.

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- Definition

Repay deficit in agreement period.

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No definition available.

+ Details

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- Definition

Revolving credit agreement.

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No definition available.

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- Definition

Unamortized deferred finance costs.

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No definition available.

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- Definition

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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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

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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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

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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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

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Line-of-Credit Arrangement
-URI http://asc.fasb.org/extlink&oid=6517033

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Revolving Credit Agreement (Details Textual) - USD ($)				1 Months Ended	12 Months Ended
Revolving Credit Agreement (Details Textual) - USD ($)	Dec. 09, 2016	Mar. 11, 2016	Apr. 14, 2015	Sep. 30, 2012	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Feb. 22, 2017	Oct. 31, 2016	Oct. 30, 2016	Oct. 21, 2015	Sep. 28, 2012
Revolving Credit Agreement (Textual) [Abstract]
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	$ 400,000	$ 800,000			$ 1,190,000	$ 1,151,000	$ 590,000
Senior unsecured notes payable					573,924,000	$ 391,254,000
Repayments of borrowings under Credit Agreement					$ 120,000,000
Repay deficit in agreement Period					6 months
Borrowings under Credit Agreement					$ 0
Borrowings interest rate			50.00%
Outstanding letters of credit					800,000
Deferred loan costs					1,300,000
Proceeds from Issuance or Sale of Equity	181,500,000
Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Company amended and restated its senior secured revolving credit agreement				September 28, 2012
Senior secured revolving credit maximum facility									$ 400,000,000	$ 300,000,000		$ 400,000,000
Maximum borrowing capacity, amended					$ 500,000,000
Debt to EBITDA ratio covenant					4.25
Percentage of reserves required to maintain					100.00%
Subsequent Event [Member]
Revolving Credit Agreement (Textual) [Abstract]
Borrowings under Credit Agreement								$ 0
Outstanding letters of credit								$ 800,000
LIBOR rate [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Borrowings interest rate					1.00%
Maximum [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Commitment fee percentage					0.50%
Minimum [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Commitment fee percentage					0.375%
Minimum [Member] \| Base rate loan [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate					0.50%
Eurodollar [Member] \| Maximum [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate					2.50%
Eurodollar [Member] \| Minimum [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate					1.50%
Unsecured Debt [Member] \| Senior Notes Due 2023 [Member]
Revolving Credit Agreement (Textual) [Abstract]
Senior unsecured notes payable	$ 175,000,000		$ 400,000,000
Stated interest rate			6.875%								6.875%
Maturity date			Apr. 15, 2023
Percentage of principal amount redeemed			35.00%
Effective interest rate					5.50%
Percentage of aggregate principal amount of notes outstanding after redemption			65.00%
Percentage of principal amount outstanding			25.00%
Period of default when due of interest			30 days
Period after notice to comply with reporting obligations			180 days
Period after notice to comply with agreements in indenture			60 days
Aggregate principal amount related to payment defaults or accelerations			$ 25,000,000.0
Amount of failure to pay final judgments			$ 25,000,000.0
Period for failure to pay final judgments			60 days
Federal Funds Effective Rate [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Borrowings interest rate					0.50%
Base rate loan [Member] \| Maximum [Member] \| Third amended credit agreement [Member]
Revolving Credit Agreement (Textual) [Abstract]
Additional interest rate					1.50%
Debt Redemption, 2018 [Member] \| Unsecured Debt [Member] \| Senior Notes Due 2023 [Member]
Revolving Credit Agreement (Textual) [Abstract]
Redemption Price			105.156%
Percentage of principal amount redeemed	105.50%		106.875%
Debt Redemption, 2019 [Member] \| Unsecured Debt [Member] \| Senior Notes Due 2023 [Member]
Revolving Credit Agreement (Textual) [Abstract]
Redemption Price			103.438%
Debt Redemption, 2020 [Member] \| Unsecured Debt [Member] \| Senior Notes Due 2023 [Member]
Revolving Credit Agreement (Textual) [Abstract]
Redemption Price			101.719%
Debt Redemption, 2021 and thereafter [Member] \| Unsecured Debt [Member] \| Senior Notes Due 2023 [Member]
Revolving Credit Agreement (Textual) [Abstract]
Redemption Price			100.00%