Note 8 - Business Segments (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Electricity		Product			Energy Storage			Consolidated
	(Dollars in thousands)
Three Months Ended March 31, 2023:
Revenues from external customers:
United States (1)	$	122,411	$	1,441		$	4,880		$	128,732
Foreign (2)		47,899		8,601			—			56,500
Net revenue from external customers		170,310		10,042			4,880			185,232
Intersegment revenues (4)		—		7,772			—			—
Operating income (loss)		57,008		(1,505	)		(2,337	)		53,166
Segment assets at period end (3) (*)		4,648,303		161,428			205,539			5,015,270
* Including unconsolidated investments		119,185		—			—			119,185
Three Months Ended March 31, 2022:
Revenues from external customers:
United States (1)	$	116,109	$	535		$	6,557		$	123,201
Foreign (2)		46,416		14,093			—			60,509
Net revenue from external customers		162,525		14,628			6,557			183,710
Intersegment revenues (4)		—		20,903			—			—
Operating income (loss)		47,575		(1,575	)		(922	)		45,078
Segment assets at period end (3) (*)		4,093,759		140,957			179,473			4,414,189
* Including unconsolidated investments		112,522		—			—			112,522

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	Three Months Ended March 31,
	2023			2022
	(Dollars in thousands)
Revenues:
Total segment revenues	$	185,232		$	183,710
Intersegment revenues		7,772			20,903
Elimination of intersegment revenues		(7,772	)		(20,903	)
Total consolidated revenues	$	185,232		$	183,710
Operating income:
Operating income	$	53,166		$	45,078
Interest income		1,851			342
Interest expense, net		(23,631	)		(21,081	)
Derivatives and foreign currency transaction gains (losses)		(1,937	)		260
Income attributable to sale of tax benefits		12,566			7,705
Other non-operating income, net		60			75
Total consolidated income before income taxes and equity in income of investees	$	42,075		$	32,379