Long-term Debt, Net of Deferred Financing Costs

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Publisher FASB

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-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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+ Details

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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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

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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-Paragraph 19, 22

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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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 SEC

-Name Regulation S-X (SX)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Subparagraph (SX 210.5-02.22)

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-Subparagraph (SX 210.7-03.16)

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Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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-Publisher FASB

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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-Glossary Financing Activities

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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Long-Term Debt and Credit Agreements (Details) (USD $)	12 Months Ended			1 Months Ended	0 Months Ended
Long-Term Debt and Credit Agreements (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2014	Oct. 22, 2013	Jul. 02, 2014	May 30, 2014	May 29, 2014	Dec. 13, 2013
Debt Instrument [Line Items]
Unamortized debt issuance expense	$ 680,000us-gaap_UnamortizedDebtIssuanceExpense	$ 853,000us-gaap_UnamortizedDebtIssuanceExpense
Long-term Debt	237,109,000us-gaap_LongTermDebt	45,200,000us-gaap_LongTermDebt
Stated interest rate of debt instruments (as a percentage)					5.25%
Amounts repaid on long-term debt	0us-gaap_RepaymentsOfLongTermDebt	32,683,000us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt
Amount outstanding on letters of credit	4,300,000
Long-term debt, excluding unamortized deferred financing costs	236,429,000	44,347,000
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	100,000,000
Proceeds from issuance of long-term debt				89,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit			180,000,000
Remaining borrowing capacity under line of credit	158,600,000
Average interest rate on debt instruments	4.00%	3.71%
Long-term Debt	137,109,000	34,200,000
4.67% Senior Unsecured Notes due 2021 [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	40,000,000
5.25% Unsecured Notes due in 2024 [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	11,000,000	11,000,000
Proceeds from issuance of long-term debt					11,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit	300,000,000						300,000,000	200,000,000	200,000,000
Proceeds from line of credit						$ 135,300,000
Minimum [Member] \| Senior Unsecured Note [Member]
Debt Instrument [Line Items]
Stated interest rate of debt instruments (as a percentage)					4.67%
Maximum [Member] \| Senior Unsecured Note [Member]
Debt Instrument [Line Items]
Stated interest rate of debt instruments (as a percentage)					5.45%