Note 4 - Derivative Instruments and Hedging Activities - Fair Value of Derivatives (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Commodity Contract [Member]
Fair Value of Derivatives	$ (1,810)	$ 6
Foreign Exchange Contract [Member]
Fair Value of Derivatives	210	31
Interest Rate Swap [Member]
Fair Value of Derivatives	$ (31,579)	$ (10,425)

Fair value of the assets less the liabilities of a derivative or group of derivatives.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant