Debt Instrument, Mandatory Prepayment, Percent of Excess Cash Flows

No definition available.

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- Definition

Debt Instrument, Original Issuance Discount

+ References

No definition available.

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- Definition

Debt Instrument, Potential Increase (Decrease) on Basis Spread of Variable Rate

+ References

No definition available.

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- Definition

Debt Instrument, Unamortized Debt Discount, Current, Percent

+ References

No definition available.

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- Definition

Line of Credit Facility, Annual Fee On Outstanding Balance

+ References

No definition available.

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- Definition

Line of Credit Facility, Maximum Net First Lien Leverage Ratio

+ References

No definition available.

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- Definition

Line of Credit Facility, Minimum Fixed Charge Coverage Ratio

+ References

No definition available.

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- Definition

Line of Credit Facility, Potential Increase Of Unused Capacity, Commitment Fee Percentage

+ References

No definition available.

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- Definition

Minimum For Notes Repayment, Refinanced, Converted, Discharged, or Prepaid, For Maturity Date Extension Trigger

+ References

No definition available.

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- Definition

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax

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No definition available.

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- Definition

Payments for Excess Cash Flows

+ References

No definition available.

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- Definition

Payments of Original Issuance Discount and Lender Fees

+ References

No definition available.

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- Definition

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

+ References

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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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
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- Definition

Amount of the total principal payments made during the annual reporting period.

+ References

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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

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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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

+ Details

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- Definition

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

+ References

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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

Amount, after accumulated amortization, of debt discount.

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- Definition

Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

The number of derivative instruments of a particular group held by the entity.

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- Definition

For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

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- Definition

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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- Definition

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

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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.

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No definition available.

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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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.

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LONG-TERM DEBT / INTEREST EXPENSE - Narrative (Details)			3 Months Ended			6 Months Ended
LONG-TERM DEBT / INTEREST EXPENSE - Narrative (Details)	Feb. 28, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2018 USD ($) interest_rate_swap	Mar. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) interest_rate_swap	Jun. 30, 2017 USD ($)	Dec. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Feb. 27, 2018 USD ($)
Debt Instrument
Borrowings outstanding		$ 1,297,023,000	$ 1,251,686,000			$ 1,251,686,000
Loss on debt refinancing			0		$ 0	16,740,000	$ 0
Unpaid original issuance discount		$ 0	13,231,000		0	13,231,000	0
Payment of discount and fees	$ 30,200,000
Original Issuance Discount and revolving credit facility fees						35,235,000	0
Revaluation of interest rate swap, net of tax of $0.5 million			1,162,000		$ 0	1,162,000	$ 0
FILO Asset-based Term Loan Facility
Debt Instrument
Loss on debt refinancing				$ 16,700,000
Term Loan Facility Due March 2019
Debt Instrument
Borrowings outstanding											$ 1,131,200,000
Revolving Credit Facility
Debt Instrument
Borrowings outstanding											$ 225,000,000
Line of credit facility, remaining borrowing capacity			90,900,000			90,900,000
Revolving Credit Facility
Debt Instrument
Commitment fee on undrawn portion of revolving credit facility		0.50%
Term Loan Facility
Debt Instrument
Origination issuance discount (OID)	$ 43,400,000
Current OID due, percent	2.00%
Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Borrowings outstanding	$ 704,300,000
Term Loan Facility \| Term Loan Facility Due March 2019
Debt Instrument
Minimum for notes repayment, refinanced, converted, discharged, or prepaid, For maturity date extension trigger	50,000,000
Asset-backed Securities \| Revolving Credit Facility
Debt Instrument
Principal	100,000,000
Unamortized debt issuance costs	5,100,000
Asset-backed Securities \| Term Loan \| FILO Asset-based Term Loan Facility
Debt Instrument
Borrowings outstanding		$ 0	262,721,000			262,721,000
Principal	275,000,000.0
Origination issuance discount (OID)			$ 12,300,000			$ 12,300,000
Effective interest rate			9.10%			9.10%
Convertible Senior Notes \| 1.5% Convertible Senior Notes, Due 2020
Debt Instrument
Borrowings outstanding		167,988,000	$ 171,701,000			$ 171,701,000
Principal		188,565,000	188,565,000.000			188,565,000.000
Origination issuance discount (OID)		18,065,000	14,822,000			14,822,000
Unamortized debt issuance costs		2,512,000	$ 2,042,000			$ 2,042,000
Interest rate			1.50%			1.50%
Tranche B-1 \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Origination issuance discount (OID)		$ 900,000	$ 100,000			$ 100,000
Effective interest rate		4.10%	4.60%			4.60%
Tranche B-1 \| Term Loan Facility \| Term Loan Facility Due March 2019
Debt Instrument
Borrowings outstanding	$ 151,900,000	$ 1,130,320,000	$ 149,516,000			$ 149,516,000
Tranche B-1 \| Asset-backed Securities \| Term Loan Facility Due March 2019
Debt Instrument
Commitment fee on undrawn portion of revolving credit facility	0.375%
Potential increase of unused capacity fee	0.50%
Tranche B-2 \| FILO Asset-based Term Loan Facility
Debt Instrument
Unpaid original issuance discount			13,200,000			13,200,000
Tranche B-2 \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Borrowings outstanding		$ 0	655,493,000			655,493,000
Annual principal payment	$ 43,000,000
Origination issuance discount (OID)			$ 27,400,000			$ 27,400,000
Current OID due, percent	2.00%
Mandatory prepayment, percent of excess cash flows						50.00%
Effective interest rate			10.90%			10.90%
Tranche B-2 \| Initial Rate \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Mandatory prepayment, percent of excess cash flows						75.00%
Tranche B-2 \| Reduced Rate \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Mandatory prepayment, percent of excess cash flows						50.00%
LIBOR \| Asset-backed Securities \| Term Loan \| FILO Asset-based Term Loan Facility
Debt Instrument
Basis spread on variable rate	7.00%
LIBOR \| Tranche B-1 \| Asset-backed Securities \| Term Loan Facility Due March 2019
Debt Instrument
Basis spread on variable rate	1.75%
Potential increase (decrease) on basis spread of variable rate	0.25%
LIBOR \| Tranche B-2 \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Basis spread on variable rate	8.75%
Letter Of Credit \| Revolving Credit Facility
Debt Instrument
Minimum fixed charge coverage ratio			1.00			1.00
Letter Of Credit \| Asset-backed Securities \| Revolving Credit Facility
Debt Instrument
Letters of credit outstanding			$ 9,100,000			$ 9,100,000
Letter Of Credit \| Tranche B-1 \| Asset-backed Securities \| Term Loan Facility Due March 2019
Debt Instrument
Fee on outstanding balance	2.00%
Minimum \| Tranche B-2 \| Reduced Rate \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Payments for excess cash flows						0
Minimum \| LIBOR \| Asset-backed Securities \| Term Loan \| FILO Asset-based Term Loan Facility
Debt Instrument
Basis spread on variable rate	6.50%
Minimum \| LIBOR \| Tranche B-2 \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Basis spread on variable rate	8.25%
Maximum \| Tranche B-2 \| Reduced Rate \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Payments for excess cash flows						$ 25,000,000
Maximum \| LIBOR \| Tranche B-2 \| Term Loan Facility \| Amended Term Loan Facility Due March 2021
Debt Instrument
Basis spread on variable rate	9.25%
Through December 31, 2018 \| Letter Of Credit \| Revolving Credit Facility
Debt Instrument
Maximum net first lien leverage ratio			5.50			5.50
March 31, 2019 to December 31, 2019 \| Letter Of Credit \| Revolving Credit Facility
Debt Instrument
Maximum net first lien leverage ratio			5.00			5.00
Thereafter \| Letter Of Credit \| Revolving Credit Facility
Debt Instrument
Maximum net first lien leverage ratio			4.25			4.25
Interest rate swaps
Debt Instrument
Number of interest rate swaps \| interest_rate_swap			2			2
Interest rate swap one
Debt Instrument
Notional Amount			$ 275,000,000			$ 275,000,000
Derivative interest floor rate (percentage)			0.00%			0.00%
Interest rate swap two
Debt Instrument
Notional Amount			$ 225,000,000			$ 225,000,000
Derivative liability			$ 1,683,000			$ 1,683,000
Derivative interest floor rate (percentage)			0.75%			0.75%
Revaluation of interest rate swap, net of tax of $0.5 million						$ 1,200,000
Interest rate swap two \| Forecast
Debt Instrument
Notional Amount								$ 75,000,000	$ 125,000,000	$ 175,000,000