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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Summary) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Long-term debt obligations |  |
Long-term debt | $ 291,675 | $ 268,919
Less current portion | 54,075 | 61,930
Long-term debt, less current portion | $ 237,600 | 206,989
Weighted-average interest rate (as a percent) | 3.40% |
Payments under long-term debt obligations |  |
2019 | $ 63,608 |
2020 | 47,540 |
2021 | 85,514 |
2022 | 104,449 |
2023 | 17,124 |
Thereafter | 59 |
Total payments | 318,294 |
Less amounts representing interest | 26,619 |
Long-term debt | 291,675 | 268,919
Credit Facility |  |
Long-term debt obligations |  |
Long-term debt | $ 70,000 | 70,000
Interest rate (as a percent) | 3.80% |
Payments under long-term debt obligations |  |
2019 | $ 2,691 |
2020 | 2,603 |
2021 | 2,540 |
2022 | 71,318 |
Total payments | 79,152 |
Less amounts representing interest | 9,152 |
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 | $ 50,000
Effective fixed interest rate on hedged borrowings (as a percent) | 3.10% | 3.35%
Accounts receivable securitization borrowings |  |
Long-term debt obligations |  |
Long-term debt | $ 40,000 | $ 45,000
Interest rate (as a percent) | 3.20% |
Payments under long-term debt obligations |  |
2019 | $ 1,396 |
2020 | 1,345 |
2021 | 41,091 |
Total payments | 43,832 |
Less amounts representing interest | 3,832 |
Long-term debt | 40,000 | 45,000
Notes payable |  |
Long-term debt obligations |  |
Long-term debt | $ 181,409 | 153,441
Weighted-average interest rate (as a percent) | 3.40% |
Payments under long-term debt obligations |  |
2019 | $ 59,281 |
2020 | 43,565 |
2021 | 41,876 |
2022 | 33,130 |
2023 | 17,124 |
Thereafter | 59 |
Total payments | 195,035 |
Less amounts representing interest | 13,626 |
Long-term debt | 181,409 | 153,441
Capital lease obligations |  |
Long-term debt obligations |  |
Long-term debt | $ 266 | 478
Weighted-average interest rate (as a percent) | 5.60% |
Payments under long-term debt obligations |  |
2019 | $ 240 |
2020 | 27 |
2021 | 7 |
2022 | 1 |
Total payments | 275 |
Less amounts representing interest | 9 |
Long-term debt | $ 266 | $ 478

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