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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Summary) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Long-term debt obligations |  |
Long-term debt | $ 282,206 | $ 291,675
Less current portion | 47,205 | 54,075
Long-term debt, less current portion | 235,001 | 237,600
Payments under long-term debt obligations |  |
Due in one year or less | 55,808 |
Due after one year through two years | 50,379 |
Due after two years through three years | 85,385 |
Due after three years through four years | 98,514 |
Due after four years through five years | 13,035 |
Due after five years | 152 |
Total payments | 303,273 |
Less amounts representing interest | 21,067 |
Long-term debt | 282,206 | 291,675
Credit Facility |  |
Long-term debt obligations |  |
Long-term debt | $ 70,000 | 70,000
Interest rate (as a percent) | 3.70% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 2,230 |
Due after one year through two years | 1,942 |
Due after two years through three years | 1,965 |
Due after three years through four years | 70,033 |
Total payments | 76,170 |
Less amounts representing interest | 6,170 |
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) | 3.10% | 3.10%
Accounts receivable securitization borrowings |  |
Long-term debt obligations |  |
Long-term debt | $ 40,000 | $ 40,000
Interest rate (as a percent) | 3.30% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 1,132 |
Due after one year through two years | 968 |
Due after two years through three years | 40,243 |
Total payments | 42,343 |
Less amounts representing interest | 2,343 |
Long-term debt | 40,000 | 40,000
Notes payable |  |
Long-term debt obligations |  |
Long-term debt | $ 172,054 | 181,409
Weighted-average interest rate (as a percent) | 3.50% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 52,306 |
Due after one year through two years | 47,462 |
Due after two years through three years | 43,172 |
Due after three years through four years | 28,481 |
Due after four years through five years | 13,035 |
Due after five years | 152 |
Total payments | 184,608 |
Less amounts representing interest | 12,554 |
Long-term debt | 172,054 | 181,409
Finance lease obligations |  |
Long-term debt obligations |  |
Long-term debt | $ 152 | 266
Weighted-average interest rate (as a percent) | 5.50% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 140 |
Due after one year through two years | 7 |
Due after two years through three years | 5 |
Total payments | 152 |
Long-term debt | $ 152 | $ 266

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