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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Summary) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Long-term debt obligations |  |
Long-term debt | $ 323,519 | $ 291,675
Less current portion | 57,305 | 54,075
Long-term debt, less current portion | $ 266,214 | 237,600
Weighted-average interest rate (as a percent) | 3.10% |
Payments under long-term debt obligations |  |
2020 | $ 66,398 |
2021 | 102,230 |
2022 | 52,850 |
2023 | 37,030 |
2024 | 90,084 |
Thereafter | 203 |
Total payments | 348,795 |
Less amounts representing interest | 25,276 |
Long-term debt | 323,519 | 291,675
Credit Facility |  |
Long-term debt obligations |  |
Long-term debt | $ 70,000 | 70,000
Interest rate (as a percent) | 2.90% |
Payments under long-term debt obligations |  |
2020 | $ 1,947 |
2021 | 1,845 |
2022 | 1,885 |
2023 | 1,966 |
2024 | 71,515 |
Total payments | 79,158 |
Less amounts representing interest | 9,158 |
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) | 2.98% | 3.10%
Accounts receivable securitization borrowings |  |
Long-term debt obligations |  |
Long-term debt | $ 40,000 | $ 40,000
Interest rate (as a percent) | 2.60% |
Payments under long-term debt obligations |  |
2020 | $ 1,021 |
2021 | 40,719 |
Total payments | 41,740 |
Less amounts representing interest | 1,740 |
Long-term debt | 40,000 | 40,000
Notes payable |  |
Long-term debt obligations |  |
Long-term debt | $ 213,504 | 181,409
Weighted-average interest rate (as a percent) | 3.30% |
Payments under long-term debt obligations |  |
2020 | $ 63,423 |
2021 | 59,659 |
2022 | 50,964 |
2023 | 35,064 |
2024 | 18,569 |
Thereafter | 203 |
Total payments | 227,882 |
Less amounts representing interest | 14,378 |
Long-term debt | 213,504 | 181,409
Finance lease obligations |  |
Long-term debt obligations |  |
Long-term debt | $ 15 | 266
Weighted-average interest rate (as a percent) | 3.30% |
Payments under long-term debt obligations |  |
2020 | $ 7 |
2021 | 7 |
2022 | 1 |
Total payments | 15 |
Long-term debt | $ 15 | $ 266

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