Note 20 - Accumulated Other Comprehensive Income ("AOCI") - Changes in Components of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Balance	$ 9,971,737	$ 5,772,215	$ 10,110,182	$ 5,670,254
Other comprehensive income	212	0	4,472	0
Balance	9,839,848	$ 10,155,424	9,839,848	$ 10,155,424
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Balance			2,216
Other comprehensive income before reclassifications			4,472
Amounts reclassified from AOCI			0
Other comprehensive income			4,472
Balance	$ 6,688		$ 6,688