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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Summary) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Long-term debt obligations |  |
Long-term debt | $ 298,420 | $ 291,675
Less current portion | 50,197 | 54,075
Long-term debt, less current portion | 248,223 | 237,600
Payments under long-term debt obligations |  |
Due in one year or less | 58,779 |
Due after one year through two years | 55,830 |
Due after two years through three years | 88,632 |
Due after three years through four years | 33,068 |
Due after four years through five years | 15,896 |
Due after five years | 70,000 |
Total payments | 322,205 |
Less amounts representing interest | 23,785 |
Long-term debt | 298,420 | 291,675
Credit Facility |  |
Long-term debt obligations |  |
Long-term debt | $ 70,000 | 70,000
Interest rate (as a percent) | 3.20% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 1,951 |
Due after one year through two years | 1,687 |
Due after two years through three years | 1,668 |
Due after three years through four years | 1,694 |
Due after four years through five years | 1,733 |
Due after five years | 70,000 |
Total payments | 78,733 |
Less amounts representing interest | 8,733 |
Long-term debt | 70,000 | $ 70,000
Credit Facility | Interest rate swap agreement |  |
Long-term debt obligations |  |
Amount of borrowings covered by the interest rate swap | $ 50,000 |
Effective fixed interest rate on hedged borrowings (as a percent) | 2.98% | 3.10%
Accounts receivable securitization borrowings |  |
Long-term debt obligations |  |
Long-term debt | $ 40,000 | $ 40,000
Interest rate (as a percent) | 3.00% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 1,023 |
Due after one year through two years | 873 |
Due after two years through three years | 40,000 |
Total payments | 41,896 |
Less amounts representing interest | 1,896 |
Long-term debt | 40,000 | 40,000
Notes payable |  |
Long-term debt obligations |  |
Long-term debt | $ 188,326 | 181,409
Weighted-average interest rate (as a percent) | 3.40% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 55,721 |
Due after one year through two years | 53,263 |
Due after two years through three years | 46,961 |
Due after three years through four years | 31,374 |
Due after four years through five years | 14,163 |
Total payments | 201,482 |
Less amounts representing interest | 13,156 |
Long-term debt | 188,326 | 181,409
Finance lease obligations |  |
Long-term debt obligations |  |
Long-term debt | $ 94 | 266
Weighted-average interest rate (as a percent) | 5.30% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 84 |
Due after one year through two years | 7 |
Due after two years through three years | 3 |
Total payments | 94 |
Long-term debt | $ 94 | $ 266

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