Note 3 - Business Combinations and Dispositions - Merger and Integration Expense (Details) - Severance Plan in Connection with Merger [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Balance as of December 31, 2021	$ 12,215
Costs expensed during the period	418
Payments made during the period	(4,833)
Balance as of March 31, 2022	7,800
NLA [Member]
Balance as of December 31, 2021	2,057
Costs expensed during the period	114
Payments made during the period	(286)
Balance as of March 31, 2022	1,885
ESSA [Member]
Balance as of December 31, 2021	2,502
Costs expensed during the period	0
Payments made during the period	(1,054)
Balance as of March 31, 2022	1,448
MENA [Member]
Balance as of December 31, 2021	424
Costs expensed during the period	91
Payments made during the period	(153)
Balance as of March 31, 2022	362
APAC [Member]
Balance as of December 31, 2021	617
Costs expensed during the period	213
Payments made during the period	(307)
Balance as of March 31, 2022	523
Central [Member]
Balance as of December 31, 2021	6,615
Costs expensed during the period	0
Payments made during the period	(3,033)
Balance as of March 31, 2022	$ 3,582