Optional Addition To Borrowing Capacity

No definition available.

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- Definition

Debt Instrument, Extension, Term

+ References

No definition available.

+ Details

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- Definition

Fixed Charge Coverage Ratio

+ References

No definition available.

+ Details

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- Definition

Total Leverage Ratio

+ References

No definition available.

+ Details

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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.

+ Details

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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

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

+ 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

+ Details

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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

+ Details

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- Details

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- Details

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- Details

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Debt Narrative (Details)	9 Months Ended
Debt Narrative (Details)	Sep. 30, 2018 USD ($)	Aug. 20, 2018 USD ($)
Senior Revolving Credit Facility
Debt [Line Items]
Debt issuance costs, net	$ 3,200,000
$450 Million Unsecured Revolving Credit Facility \| Senior Revolving Credit Facility
Debt [Line Items]
Revolver maximum borrowing capacity		$ 450,000,000
Unamortized debt issuance expense	$ 1,500,000
$600 Million Unsecured Revolving Credit Facility \| Senior \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt [Line Items]
Debt instrument, basis spread on variable rate (percentage)	0.90%
$600 Million Unsecured Revolving Credit Facility \| Senior \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt [Line Items]
Debt instrument, basis spread on variable rate (percentage)	1.50%
$600 Million Unsecured Revolving Credit Facility \| Senior \| Base rate \| Minimum
Debt [Line Items]
Debt instrument, basis spread on variable rate (percentage)	0.00%
$600 Million Unsecured Revolving Credit Facility \| Senior \| Base rate \| Maximum
Debt [Line Items]
Debt instrument, basis spread on variable rate (percentage)	0.50%
$600 Million Unsecured Revolving Credit Facility \| Senior Revolving Credit Facility
Debt [Line Items]
Revolver maximum borrowing capacity	$ 600,000,000
Option to extend, term	1 year
Debt instrument additional borrowing capacity	$ 250,000,000
Total leverage ratio	2.5
Debt issuance costs, net	$ 1,700,000
$600 Million Unsecured Revolving Credit Facility \| Senior Revolving Credit Facility \| Minimum
Debt [Line Items]
Credit facility, commitment fee percentage	0.075%
Fixed charge coverage ratio	2.5
$600 Million Unsecured Revolving Credit Facility \| Senior Revolving Credit Facility \| Maximum
Debt [Line Items]
Total leverage ratio	4.5
Credit facility, commitment fee percentage	0.25%
$600 Million Unsecured Revolving Credit Facility \| Senior Revolving Credit Facility \| Total Leverage Ratio exceeds 5.50 to 1.00 \| Maximum
Debt [Line Items]
Total leverage ratio	5.5
$600 Million Unsecured Revolving Credit Facility \| Senior Revolving Credit Facility \| Alternative currency loans
Debt [Line Items]
Revolver maximum borrowing capacity	$ 35,000,000
$600 Million Unsecured Revolving Credit Facility \| Senior Revolving Credit Facility \| Swing line loans
Debt [Line Items]
Revolver maximum borrowing capacity	$ 25,000,000
$400 Million Senior Notes \| Senior
Debt [Line Items]
Debt instrument stated interest rate (percentage)	5.75%
$250 Million Senior Notes \| Senior
Debt [Line Items]
Debt instrument stated interest rate (percentage)	5.70%