Note 19 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	Year Ended December 31,
	2016			2015			2014
	(Dollars in thousands)
U.S	$	(7,109	)	$	(236	)	$	(2,623	)
Non-U.S. (foreign)		148,197			113,835			88,459
	$	141,088		$	113,599		$	85,836

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

	Year Ended December 31,
	2016			2015			2014
	(Dollars in thousands)
Current:
Federal	$	—		$	51		$	—
State		(276	)		252			490
Foreign		14,040			19,175			13,983
	$	13,764		$	19,478		$	14,473
Deferred:
Foreign		18,073			(34,736	)		13,135
		18,073			(34,736	)		13,135
	$	31,837		$	(15,258	)	$	27,608

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

	Year Ended December 31,
	2016			2015			2014
	(Dollars in thousands)
Other deferred tax expense (exclusive of the effect of other components listed below)	$	(1,105	)	$	541		$	(18,424	)
Usage (benefit) of operating loss carryforwards - U.S.		(14,072	)		(30,596	)		7,764
Change in valuation allowance		16,411			(14,324	)		3,526
Change in foreign valuation allowance		—			(49,701	)		—
Change in foreign income tax		18,073			14,965			13,135
Change in lease transaction		—			(452	)		2,136
Change in tax monetization transaction		48,000			16,386			5,184
Change in depreciation		(55,462	)		28,370			9,431
Change in intangible drilling costs		10,227			10,335			(9,706	)
Change in production tax credits and alternative minimum tax credit		(11,659	)		610			89
Basis difference in partnership interests		7,660			(10,870	)		—
	$	18,073		$	(34,736	)	$	13,135

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

	Year Ended December 31,
	2016			2015			2014
U.S. federal statutory tax rate		35.0	%		35.0	%		35.0	%
Valuation allowance - U.S.		11.1			(1.4	)		(1.7	)
Valuation allowance - foreign		-			(43.8	)
Tax monetization		-			-			2.5
State income tax, net of federal benefit		(0.2	)		0.6			(0.7	)
Effect of foreign income tax, net		(14.1	)		(5.1	)		(4.9	)
Production tax credits		(8.3	)		(0.1	)		0.9
Subpart F income		0.3			1.3			1.4
Depletion		-			-			(1.1	)
Other, net		(1.3	)		-			0.8
Effective tax rate		22.5	%		(13.5)	%		32.2	%

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

	December 31,
	2016			2015
	(Dollars in thousands)
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation	$	(35,382	)	$	(32,654	)
Depreciation		148,419			87,943
Intangible drilling costs		(112,762	)		(102,013	)
Net capital loss carryforward - U.S.		117,924			103,850
Tax monetization transaction		(105,789	)		(80,478	)
Investment tax credits		1,341			1,341
Production tax credits		82,451			70,792
Stock options amortization		3,241			3,467
Basis difference in partnership interest		(24,462	)		(16,801	)
Accrued liabilities and other		(752	)		2,435
		74,229			37,882
Less - valuation allowance		(109,611	)		(70,536	)
Total	$	(35,382	)	$	(32,654	)

Summary of Valuation Allowance [Table Text Block]

	Year Ended December 31,
	2016		2015			2014
	(Dollars in thousands)
Balance at beginning of the year	$	70,536	$	111,280		$	114,806
Additions to (release of) valuation allowance		39,075		(40,744	)		(3,526	)
Balance at end of the year	$	109,611	$	70,536		$	111,280

Schedule Of Deferred Taxes Classified In Balance Sheet [Table Text Block]

	Year Ended December 31,
	2016			2015			2014
	(Dollars in thousands)
Current deferred tax assets	$	—		$	—		$	251
Current deferred tax liabilities		—			—			(975	)
Non-current deferred tax liabilities		(35,382	)		(32,654	)		(66,219	)
	$	(35,382	)	$	(32,654	)	$	(66,943	)

Summary of Income Tax Contingencies [Table Text Block]

	Year Ended December 31,
	2016			2015			2014
	(Dollars in thousands)
Balance at beginning of year	$	10,385		$	7,511		$	4,950
Additions based on tax positions taken in prior years		675			(198	)		230
Additions based on tax positions taken in the current year		1,059			4,386			2,980
Reduction based on tax positions taken in prior years		(6,381	)		(1,314	)		(649	)
Balance at end of year	$	5,738		$	10,385		$	7,511

Summary of Income Tax Examinations [Table Text Block]

Israel	2015	—	2016
Kenya	2001	—	2016
Guatemala	2010	—	2016
Philippines	2010	—	2016
New Zealand	2011	—	2016