LONG-TERM DEBT AND OTHER FINANCING ARRANGEMENTS Long term debt summary (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
Long-term debt	$ 690,883	$ 772,339
Other credit facilities and finance leases	15,613	15,891
Total long-term debt and other financing arrangements	706,496	788,230
Less: current maturities	(5,802)	(5,545)
Total non-current long-term debt and other financing arrangements	$ 700,694	$ 782,685

Credit Facilities And Capital Leases

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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.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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