Note 2 - New Accounting Pronouncements (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2018
	(Dollars in thousands)
Electricity Revenues accounted under ASC 840, Leases	$	125,832
Electricity and Product revenues accounted under ASC 606		58,191
Total consolidated revenues	$	184,023

	2018, under previous standard		Effect of the New Revenue Standard			2018, as reported
	(Dollars in thousands)
Equity in earnings of investees, net	$	1,944	$	(734	)	$	1,210
Income from continuing operations		74,990		(734	)		74,256
Net income attributable to the Company’s stockholders		70,242		(734	)		69,508
Retained earnings		411,492		(734	)		410,758

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

	March 31, 2018			December 31, 2017
	(Dollars in thousands)
Contract assets (*)	$	41,134		$	40,945
Contract liabilities (*)		(10,458	)		(20,241	)
Contract assets, net	$	30,676		$	20,704

	Contract assets			Contract liabilities
	(Dollars in thousands)
Recognition of contract liabilities as revenue as a result of performance obligations satisfied	$	–		$	8,353
Cash received in advance for which revenues have not yet recognized		–			(4,451	)
Reduction of contract assets as a result of rights to consideration becoming unconditional		(22,144	)		–
Contract assets recognized, net of recognized receivables		28,214			–
Net change in contract assets and contract liabilities	$	6,070		$	3,902