Note 18 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Year Ended December 31,
	2013		2012			2011
	(Dollars in thousands)
U.S.	$	1,520	$	(283,242	)	$	(32,797	)
Non-U.S. (foreign)		49,616		71,437			37,115
	$	51,136	$	(211,805	)	$	4,318

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended December 31,
	2013		2012			2011
	(Dollars in thousands)
Current:
State	$	208	$	(768	)	$	135
Foreign		2,886		7,331			10,044
	$	3,094	$	6,563		$	10,179
Deferred:
Federal		—		(17,312	)		38,566
State		—		(44	)		(2,099	)
Foreign		10,458		12,620			1,594
		10,458		(4,736	)		38,061
	$	13,552	$	1,827		$	48,240

Components of Deferred Income Tax Expense Benefit [Table Text Block]

	Year Ended December 31,
	2013			2012 As Revised			2011
	(Dollars in thousands)
Deferred tax expense (exclusive of the effect of other components listed below)	$	(71,052	)	$	23,802		$	4,045
Write-off of power plants		—			(90,720	)		—
Usage (benefit) of operating loss carryforwards — U.S.		11,672			26,907			(35,575	)
Change in valuation allowance		(1,787	)		16,877			61,500
Change in foreign income tax		10,458			8,257			5,041
Change in lease transaction		974			1,170			1,027
Change in tax monetization transaction		46,051			5,353			(4,975	)
Change in intangible drilling costs		15,091			14,133			18,592
Benefit of production tax credits and alternative minimum tax credits		(949	)		(10,515	)		(11,594	)
Total	$	10,458		$	(4,736	)	$	38,061

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended December 31,
	2013			2012 As Revised			2011
U.S. federal statutory tax rate		35.0	%		35.0	%		35.0	%
Valuation allowance		(3.5	)		(8.0	)		1,424.6
State income tax, net of federal benefit		(0.2	)		4.1			(35.9	)
Effect of foreign income tax, net		(7.9	)		2.4			(31.3	)
Production tax credits		(1.9	)		5.0			(268.6	)
Dividends from foreign subsidiaries		-			(39.3	)		-
Subpart F income		4.7			-			-
Depletion		-			0.3			(18.7	)
Other, net		0.3			(0.4	)		12.3
Effective tax rate		26.5	%		0.9	%		1,117.2	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2013			2012 As Revised
	(Dollars in thousands)
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation	$	(53,621	)	$	(43,531	)
Depreciation		96,137			44,701
Intangible drilling costs		(81,972	)		(66,881	)
Net operating loss carryforward — U.S.		92,375			103,771
Dividends from foreign subsidiaries		—			(20,995	)
Tax monetization transaction		(72,521	)		(26,470	)
Lease transaction		2,437			3,410
Investment tax credits		672			1,971
Production tax credits		71,313			68,954
Alternative minimum tax credit		—			1,410
Stock options amortization		3,464			3,072
Accrued liabilities and other		2,901			653
		61,185			70,065
Less — valuation allowance		(114,806	)		(113,596	)
Total	$	(53,621	)	$	(43,531	)

Summary of Valuation Allowance [Table Text Block]

	Year Ended December 31,
	2013			2012 As Revised		2011
	(Dollars in thousands)
Balance at beginning of the year	$	113,596		$	61,500	$	433
Additions (releases) of valuation allowances		(1,210	)		52,096		61,067
Balance at the end of the year	$	114,806		$	113,596	$	61,500

Schedule of Deferred Taxes Classified in Balance Sheet [Table Text Block]

	Year Ended December 31,
	2013			2012 As Revised			2011
	(Dollars in thousands)
Current deferred tax assets	$	523		$	637		$	1,842
Current deferred tax liabilities		—			(20,392	)		—
Non-current deferred tax assets		891			21,283			—
Non-current deferred tax liabilities		(55,035	)		(45,059	)		(54,665	)
Balance at end of year	$	(53,621	)	$	(43,531	)	$	(52,823	)

Summary of Income Tax Contingencies [Table Text Block]

	Year Ended December 31,
	2013			2012		2011
	(Dollars in thousands)
Balance at beginning of year	$	7,281		$	5,875	$	5,431
Additions based on tax positions taken in prior years		200			1,381		1,207
Additions based on tax positions taken in the current year		1,146			25		612
Reduction based on tax positions taken in prior years		(3,677	)		—		(1,375	)
Balance at end of year	$	4,950		$	7,281	$	5,875

Summary of Income Tax Examinations [Table Text Block]

Israel	2009	—	2013
Kenya	2007	—	2013
Guatemala	2009	—	2013
Philippines	2009	—	2013
New Zealand	2009	—	2013