Contractual Quarterly Payments

No definition available.

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- Definition

creditfacilityamendmentcosts

+ References

No definition available.

+ Details

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- Definition

The leverage ratio as defined in the credit agreement.

+ References

No definition available.

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- Definition

Leverage ratio limit in latest year of debt facility, as described in debt agreement.

+ References

No definition available.

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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
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-Section 45
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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.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	instant

- 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

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

+ 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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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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

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

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Long-Term Debt (Details) $ in Thousands		12 Months Ended
Long-Term Debt (Details) $ in Thousands	Feb. 21, 2017 Rate	Dec. 31, 2016 USD ($) Rate	Dec. 31, 2015 USD ($)	Jun. 05, 2015 USD ($)
Debt Instrument [Line Items]
Secured Debt		$ 656,000	$ 774,000
Unamortized Debt Issuance Expense		(15,645)	(18,492)
Long-term Debt		640,355	755,508
Creditfacilityamendmentcosts		$ 900
Weighted average interest rate		3.50%
Contractual Quarterly Payments		$ 2,100
Leverage ratio		2.32
Letters of Credit Outstanding, Amount		$ 4,000	3,500
Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio		4.00
Leverage Ratio in Latest Year of Debt Term		3.25
$825 Million Term B Loan Facility and $150 Million Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Face amount of term loan				$ 975,000
$150 Million Revolving Credit Facility, Due June 2020 [Member]
Debt Instrument [Line Items]
Secured Debt		$ 0	50,000
Face amount of term loan				150,000
$825 Million Term B Loan Facility, due June 2022 [Member]
Debt Instrument [Line Items]
Secured Debt		$ 656,000	$ 724,000
Face amount of term loan				$ 825,000
Basis spread on variable rate borrowings \| Rate	0.50%
Term Loan Facility \| $150 Million Revolving Credit Facility, Due June 2020 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate borrowings \| Rate		2.50%
Revolving credit facility, unused portion, commitment fee percentage \| Rate		0.00%
Term Loan Facility \| $150 Million Revolving Credit Facility, Due June 2020 [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate borrowings \| Rate		0.75%
Revolving credit facility, unused portion, commitment fee percentage \| Rate		0.00%
Term Loan Facility \| $825 Million Term B Loan Facility, due June 2022 [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate borrowings \| Rate		2500.00%
Term Loan Facility \| $825 Million Term B Loan Facility, due June 2022 [Member] \| Eurodollar [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate borrowings \| Rate		2.75%
Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity		$ 146,000