Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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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.

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Percentage of principal amount of debt redeemed.

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No definition available.

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The carrying value as of the balance sheet date of the current and noncurrent portions 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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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Weighted average interest rate of long-term debt outstanding calculated over time.

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No definition available.

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Including the current and noncurrent portions, carrying value at the balance sheet date of a financial instrument used to receive debt funding on a regular basis with original maturities ranging from 5-10 years.

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- Definition

Indebtedness divided by net capital.

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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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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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LONG-TERM DEBT LIABILITIES - Senior Debt (Details) $ in Thousands		6 Months Ended
	Nov. 17, 2017 USD ($)	Jun. 30, 2019 USD ($)	Apr. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Notes		$ 325,000		$ 0
Aggregate notional amounts outstanding		$ 560,000
Senior secured second-lien notes due 2027 [Member]
Debt Instrument [Line Items]
Notes			$ 325,000
Interest rate on notes		6.50%
Senior secured second-lien notes due 2027 [Member] \| Until May 1 2022 [Member]
Debt Instrument [Line Items]
Redemption rate as a percentage of principal amount		106.50%
Senior secured second-lien notes due 2027 [Member] \| On or after May 1 2022 [Member]
Debt Instrument [Line Items]
Redemption rate as a percentage of principal amount		104.875%
Term B-1 loan [Member]
Debt Instrument [Line Items]
Notes		$ 425,000
Undrawn amount of the Revolver		89,000
Write-off of unamortized deferred financing costs		1,600
Deferred financing costs		$ 3,900
Senior Debt Obligations
Debt Instrument [Line Items]
Consolidated Leverage Ratio		2.6
Senior Debt Obligations \| Through December 31, 2017 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Consolidated Leverage Ratio		4.0
Senior Debt Obligations \| ThroughDecember312018Member [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Consolidated Leverage Ratio		4.5
Senior Debt Obligations \| New Revolver [Member]
Debt Instrument [Line Items]
Undrawn amount of the Revolver		$ 135,100
New Credit Facility, Amount Outstanding	$ 250,000
Senior Debt Obligations \| New Term B Loan [Member]
Debt Instrument [Line Items]
Redemption rate as a percentage of principal amount	1.00%