Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

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

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Increase for accrued, but unpaid interest on the debt instrument for the period.

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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.

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- Definition

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

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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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Percentage of principal amount of debt redeemed.

+ References

No definition available.

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- Definition

Fair value amount of debt instrument that was repurchased.

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No definition available.

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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

Nominal or face amount used to calculate payment on derivative.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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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.

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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.

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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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- 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.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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No definition available.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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FINANCING ARRANGEMENTS - Narrative (Details) - USD ($)			3 Months Ended			9 Months Ended
FINANCING ARRANGEMENTS - Narrative (Details) - USD ($)	Jul. 17, 2019	Jul. 02, 2019	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Debt Instrument [Line Items]
Available to borrow and outstanding letters of credit			$ 231,100,000			$ 231,100,000		$ 235,400,000
Outstanding letters of credit			147,200,000			147,200,000		130,100,000
Loss on early extinguishment			6,119,000	$ 6,100,000	$ 2,469,000	6,119,000	$ 2,469,000
Debt fair value			$ 1,600,000,000			$ 1,600,000,000		1,600,000,000
Effective interest rate percentage			4.67%			4.67%
Derivative liability			$ 25,300,000			$ 25,300,000		8,800,000
Term Loan Agreement
Debt Instrument [Line Items]
Debt outstanding			736,600,000			736,600,000
Term Loans with Interest Rate Swap Agreements
Debt Instrument [Line Items]
Debt outstanding			$ 350,000,000.0			$ 350,000,000.0
Unsecured debt
Debt Instrument [Line Items]
Redemption percentage of principal amount						100.00%
Redemption percentage (up to)						35.00%
Unsecured debt \| 2021 Notes
Debt Instrument [Line Items]
Purchased notes	$ 144,000,000.0	$ 701,000,000.0
Repayments of debt		706,200,000
Accrued interest	$ 900,000	3,100,000
Interest rate (as a percentage)			5.125%			5.125%
Unsecured debt \| Unsecured senior notes, at 4.875%, due July 15, 2027 (2027 Notes)
Debt Instrument [Line Items]
Debt aggregate principal amount		545,000,000.0
Redemption percentage of principal amount						104.875%
Interest rate (as a percentage)			4.875%			4.875%
Unsecured debt \| Unsecured senior notes, at 5.125%, due July 15, 2029 (2029 Notes)
Debt Instrument [Line Items]
Debt aggregate principal amount		$ 300,000,000.0
Redemption percentage of principal amount						105.125%
Interest rate (as a percentage)			5.125%			5.125%
Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Revolving credit facility maximum borrowing capacity			$ 400,000,000.0			$ 400,000,000.0		400,000,000.0
Debt outstanding			0			$ 0		$ 0
Eurodollar
Debt Instrument [Line Items]
Interest rate percentage						1.75%
Interest Rate Swap
Debt Instrument [Line Items]
Notional amount of interest rate swap agreements			$ 350,000,000.0			$ 350,000,000.0
Interest rate percentage						2.92%