Note 11 - Long-term Debt, Credit Agreements and Commercial Paper - Future Minimum Payments Under Long-term Obligations (Details) $ in Thousands	Dec. 31, 2019 USD ($)
2020	$ 135,504
2021	76,259
2022	220,677
2023	98,982
2024	78,600
Thereafter	557,890
Total	$ 1,167,912

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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