Credit Available Subject to Percentage of Accounts Receivable

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Credit Available Subject to Percentage of Cash Deposited

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Debt Instrument, Spread on Variable Rate, Period for Measurement of Average Liquidity

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Debt Redemption Fees

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Line of Credit Facility Increase in Maximum Borrowing Capacity

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

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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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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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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No definition available.

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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.

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No definition available.

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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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Nominal or face amount used to calculate payment on derivative.

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

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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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.

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No definition available.

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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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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

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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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 ($)						12 Months Ended
FINANCING ARRANGEMENTS (Narrative) (Details) - USD ($)	Oct. 28, 2020	Mar. 31, 2020	Jul. 02, 2019	Jul. 19, 2018	Apr. 17, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Aug. 01, 2018
Financing arrangements
Loss on early extinguishment of debt						$ 0	$ 6,131,000	$ 2,488,000
Effective interest rate (as a percent)						4.67%
Fair value of long-term obligations, including current portion						$ 1,600,000,000	1,600,000,000
Borrowings from revolving credit facility						150,000,000	0	50,000,000
Revolving credit facility, available borrowing capacity						264,000,000.0
Letters of credit outstanding, amount						120,600,000
Derivative liability						$ 33,600,000	20,800,000
Secured senior Term Loans due June 30, 2024
Financing arrangements
Term loan outstanding				$ 350,000,000.0
Senior unsecured notes, at 5.25%, due August 1, 2020 (2020 Notes)
Financing arrangements
Repayments of debt				330,900,000
Accrued interest				7,900,000
Debt redemption fees				1,000,000.0
Term Loans with Interest Rate Swap Agreements
Financing arrangements
Debt outstanding								350,000,000.0
Unsecured debt
Financing arrangements
Redemption percentage of principal amount						100.00%
Debt instrument, redemption price, percentage of principal amount redeemed						35.00%
Unsecured debt \| Unsecured senior notes, at 4.875%, due July 15, 2027 ("2027 Notes")
Financing arrangements
Aggregate principal amount			$ 545,000,000.0
Redemption percentage of principal amount						104.875%
Unsecured debt \| Unsecured senior notes, at 5.125%, due July 15, 2029 ("2029 Notes")
Financing arrangements
Aggregate principal amount			300,000,000.0
Redemption percentage of principal amount						105.125%
Unsecured debt \| Unsecured senior notes, at 5.125%, due June 1, 2021 ("2021 Notes")
Financing arrangements
Repurchased amount			845,000,000.0
Repayments of debt			850,200,000
Accrued interest			$ 4,000,000.0
Unsecured debt \| Senior unsecured notes, at 5.25%, due August 1, 2020 (2020 Notes)
Financing arrangements
Repurchased amount				$ 322,000,000.0					$ 78,000,000.0
Secured debt \| Secured senior Term Loans due June 30, 2024
Financing arrangements
Effective interest rate (as a percent)						1.90%
Secured debt \| Secured senior Term Loans due June 30, 2024 \| Eurodollar
Financing arrangements
Basis spread on variable rate (as a percent)					1.75%
Secured debt \| Secured senior Term Loans due June 30, 2024 \| Base rate
Financing arrangements
Basis spread on variable rate (as a percent)					0.75%
LIne of credit
Financing arrangements
Credit facility, maximum borrowing capacity						$ 400,000,000.0
Period for measurement of average liquidity (in days)						30 days
LIne of credit \| Minimum
Financing arrangements
Commitment fee (as a percent)						0.25%
LIne of credit \| Minimum \| Base rate
Financing arrangements
Basis spread on variable rate (as a percent)						0.50%
LIne of credit \| Minimum \| LIBOR
Financing arrangements
Basis spread on variable rate (as a percent)						1.50%
LIne of credit \| Maximum
Financing arrangements
Commitment fee (as a percent)						0.375%
LIne of credit \| Maximum \| Base rate
Financing arrangements
Basis spread on variable rate (as a percent)						0.75%
LIne of credit \| Maximum \| LIBOR
Financing arrangements
Basis spread on variable rate (as a percent)						1.75%
LIne of credit \| Parent and Domestic Subsidiaries
Financing arrangements
Credit available subject to percentage of accounts receivable (as a percent)	85.00%
Credit available subject to percentage of cash deposited (as a percent)	100.00%
LIne of credit \| Canadian Subsidiaries
Financing arrangements
Credit available subject to percentage of accounts receivable (as a percent)	85.00%
Credit available subject to percentage of cash deposited (as a percent)	100.00%
Interest rate swap
Financing arrangements
Basis spread on variable rate (as a percent)						2.92%
Notional amount								$ 350,000,000.0
Revolving credit facility \| LIne of credit
Financing arrangements
Borrowings from revolving credit facility		$ 150,000,000.0
Debt outstanding						$ 0	$ 0
Revolving credit facility \| LIne of credit \| Parent and Domestic Subsidiaries
Financing arrangements
Credit facility, maximum borrowing capacity	$ 350,000,000.0
Revolving credit facility \| LIne of credit \| Canadian Subsidiaries
Financing arrangements
Credit facility, maximum borrowing capacity	50,000,000.0
Letters of credit \| LIne of credit \| Parent and Domestic Subsidiaries
Financing arrangements
Credit facility, maximum borrowing capacity	$ 250,000,000.0