Note 22 - Commitments and Contingent Liabilities (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Guarantor Obligations [Table Text Block]

	Amount of Commitment Expiration Per Period
	Total
	Amounts		Less Than						Beyond
	Committed		1 Year		1-3 Years		3-5 Years		5 Years
Letters of Credit:
Employee-Related	$	75,776	$	54,134	$	21,642	$	—	$	—
Environmental		398		—		398		—		—
Other		80,982		33,282		47,700		—		—
Total Letters of Credit	$	157,156	$	87,416	$	69,740	$	—	$	—
Surety Bonds:
Employee-Related	$	83,524	$	83,524	$	—	$	—	$	—
Environmental		563,705		559,155		4,550		—		—
Other		4,379		4,379		—		—		—
Total Surety Bonds	$	651,608	$	647,058	$	4,550	$	—	$	—
Guarantees:
Other	$	8,673	$	6,538	$	1,554	$	398	$	183