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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Summary) (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Long-term debt obligations |  |
Long-term debt | $ 227,070 | $ 243,673
Less current portion | 59,995 | 64,143
Long-term debt, less current portion | 167,075 | 179,530
Payments under long-term debt obligations |  |
Due in one year or less | 64,735 |
Due after one year through two years | 44,207 |
Due after two years through three years | 122,755 |
Due after three years through four years | 5,310 |
Due after four years through five years | 2,338 |
Total payments | 239,345 |
Less amounts representing interest | 12,275 |
Long-term debt | 227,070 | 243,673
Credit Facility |  |
Long-term debt obligations |  |
Long-term debt | $ 70,000 | 70,000
Interest rate (as a percent) | 2.50% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 1,944 |
Due after one year through two years | 2,275 |
Due after two years through three years | 71,886 |
Total payments | 76,105 |
Less amounts representing interest | 6,105 |
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) | 3.35% |
Accounts receivable securitization program |  |
Long-term debt obligations |  |
Long-term debt | $ 35,000 | 35,000
Interest rate (as a percent) | 1.70% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 759 |
Due after one year through two years | 925 |
Due after two years through three years | 36,047 |
Total payments | 37,731 |
Less amounts representing interest | 2,731 |
Long-term debt | 35,000 | 35,000
Notes payable |  |
Long-term debt obligations |  |
Long-term debt | $ 121,444 | 138,032
Weighted-average interest rate (as a percent) | 2.20% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 61,802 |
Due after one year through two years | 40,772 |
Due after two years through three years | 14,621 |
Due after three years through four years | 5,303 |
Due after four years through five years | 2,331 |
Total payments | 124,829 |
Less amounts representing interest | 3,385 |
Long-term debt | 121,444 | 138,032
Capital lease obligations |  |
Long-term debt obligations |  |
Long-term debt | $ 626 | 641
Weighted-average interest rate (as a percent) | 5.70% |
Payments under long-term debt obligations |  |
Due in one year or less | $ 230 |
Due after one year through two years | 235 |
Due after two years through three years | 201 |
Due after three years through four years | 7 |
Due after four years through five years | 7 |
Total payments | 680 |
Less amounts representing interest | 54 |
Long-term debt | $ 626 | $ 641

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