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Financial Instruments (Tables) | 6 Months Ended
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Jun. 30, 2020
Debt Disclosure [Abstract] |
Schedule of Long-term Debt Instruments | Long-term debt, principally to banks and noteholders, consists of:
(in thousands, except interest rates) | June 30, 2020 | December 31, 2019
Revolving credit agreement with borrowings outstanding at an end of period interest rate of 3.11% in 2020 and 3.43% in 2019 (including the effect of interest rate hedging transactions, as described below), due in 2022 | $ | 435,000 |  | $ | 424,000 |
Other debt, at an average end of period rate of 5.50% in both 2020 and 2019, due in varying amounts through 2021 | 17 |  | 29 |
Long-term debt | 435,017 |  | 424,029 |
Less: current portion | (17) |  | (20) |
Long-term debt, net of current portion | $ | 435,000 |  | $ | 424,009 |

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