Note 2 - New Accounting Pronouncements (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

	(Dollars in millions)
Electricity segment revenues	$	–
Product segment revenues		–
Other segment revenues		–
Investment in an unconsolidated company		24.0

	Three Months Ended June 30, 2018		Six Months Ended June 30, 2018
	(Dollars in thousands)		(Dollars in thousands)
Electricity revenues accounted under ASC 840, Leases	$	116,914	$	242,745
Electricity, Product and Other revenues accounted under ASC 606		61,385		119,577
Total consolidated revenues	$	178,299	$	362,322

	Three months ended June 30, 2018 under previous standard			Effect of the New Revenue Standard		As reported for the three months ended June 30, 2018
	(Dollars in thousands)
Equity in earnings (losses) of investees, net	$	(3,237	)	$	3,625	$	388
Income from continuing operations		(966	)		3,625		2,659
Net income attributable to the Company’s stockholders		(3,968	)		3,625		(343	)
Retained earnings		401,728			3,625		405,353

	Six months ended June 30, 2018 under previous standard			Effect of the New Revenue Standard		As reported for the six months ended June 30, 2018
	(Dollars in thousands)
Equity in earnings (losses) of investees, net	$	(1,293	)	$	2,891	$	1,598
Income from continuing operations		74,024			2,891		76,915
Net income attributable to the Company’s stockholders		66,274			2,891		69,165
Retained earnings		402,462			2,891		405,353

Contract with Customer, Asset and Liability [Table Text Block]

	June 30,			December 31,
	2018			2017
	(Dollars in thousands)
Contract assets (*)	$	46,573		$	40,945
Contract liabilities (*)		(16,136	)		(20,241	)
Contract assets, net	$	30,437		$	20,704

	Contract assets			Contract liabilities
	(Dollars in thousands)
Recognition of contract liabilities as revenue as a result of performance obligations satisfied	$	-		$	11,094
Cash received in advance for which revenues have not yet recognized, net expenditures made		-			(12,901	)
Reduction of contract assets as a result of rights to consideration becoming unconditional		(59,634	)		-
Contract assets recognized, net of recognized receivables		71,174			-
Net change in contract assets and contract liabilities		11,540			(1,807	)