Note 18 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Year Ended December 31,
	2019		2018		2017
	(Dollars in thousands)
U.S	$	14,187	$	14,097	$	13,680
Non-U.S. (foreign)		123,116		123,084		157,050
Total income from continuing operations, before income taxes and equity in losses	$	137,303	$	137,181	$	170,730

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

	Year Ended December 31,
	2019			2018			2017
	(Dollars in thousands)
Current:
Federal	$	—		$	0		$	43,935
State		172			381			43
Foreign		16,969			14,992			11,186
Total current income tax expense	$	17,141		$	15,373		$	55,164
Deferred:
Federal		(12,179	)		(6,886	)		(55,718	)
State		4,671			(2,595	)		(3,284	)
Foreign		35,980			28,841			25,502
Total deferred tax provision (benefit)		28,472			19,360			(33,500	)
Total Income tax provision	$	45,613		$	34,733		$	21,664

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

	Year Ended December 31,
	2019			2018			2017
U.S. federal statutory tax rate		21.0	%		21.0	%		35.0	%
Impact of federal tax reform		0.0			2.6			(12.4	)
Transition tax inclusion		—			(5.7	)		42.1
Foreign tax credits		(22.8	)		(4.2	)		(50.5	)
Withholding tax		10.4			5.9			34.1
Valuation allowance - U.S		(3.7	)		(17.2	)		(22.6	)
State income tax, net of federal benefit		3.7			1.0			1.1
Uncertain tax positions		2.1			2.1			—
Effect of foreign income tax, net		9.7			5.6			(10.7	)
Production tax credits		(5.0	)		(3.1	)		(1.2	)
Subpart F income		0.5			0.5			1.7
Tax on global intangible low-tax income		16.9			18.6			—
Intra-entity transfers of assets other than inventory		0.3			(2.1	)		—
Other, net		0.1			0.3			(3.9	)
Effective tax rate		33.2	%		25.3	%		12.7	%

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

	December 31,
	2019			2018
	(Dollars in thousands)
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation	$	(88,508	)	$	(57,202	)
Depreciation		(21,958	)		(30,500	)
Intangible drilling costs		(1,405	)		7,370
Net operating loss carryforward - U.S.		45,307			65,020
Tax monetization transaction		(30,964	)		(17,104	)
Right-of-use assets		(3,715	)		—
Lease liabilities		3,755			—
State and Investment tax credits		813			813
Production tax credits		100,524			90,913
Foreign tax credits		92,497			58,072
Withholding tax		(15,539	)		(8,052	)
Stock options amortization		1,409			1,440
Basis difference in partnership interest		(39,622	)		(36,516	)
Excess business interest		6,189			—
Accrued liabilities and other		1,013			624
		49,796			74,878
Less - valuation allowance		(17,412	)		(22,441	)
Total	$	32,384		$	52,437

Summary of Valuation Allowance [Table Text Block]

	2019			2018			2017
	(Dollars in thousands)
Balance at beginning of the year	$	22,441		$	77,571		$	116,234
Additions to valuation allowance		15,437			4,747			46,560
Release of valuation allowance		(20,466	)		(59,877	)		(85,223	)
Balance at end of the year	$	17,412		$	22,441		$	77,571

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

	Year Ended December 31,
	2019			2018			2017
	(Dollars in thousands)
Non-current deferred tax assets	$	129,510		$	113,760		$	57,337
Non-current deferred tax liabilities		(97,126	)		(61,323	)		(61,961	)
Non-current deferred tax assets, net		32,384			52,437			(4,624	)
Uncertain tax benefit offset (1)		(95	)		(95	)		(95	)
	$	32,289		$	52,342		$	(4,719	)

Summary of Income Tax Contingencies [Table Text Block]

	Year Ended December 31,
	2019			2018			2017
	(Dollars in thousands)
Balance at beginning of year	$	8,820		$	6,357		$	4,609
Additions based on tax positions taken in prior years		104			293			5
Additions based on tax positions taken in the current year		2,314			2,446			2,580
Reduction based on tax positions taken in prior years		(615	)		(276	)		(837	)
Balance at end of year	$	10,623		$	8,820		$	6,357

Summary of Income Tax Examinations [Table Text Block]

Israel	2015	-	2019
Kenya	2013	-	2019
Guatemala	2015	-	2019
Honduras	2015	-	2019
Guadeloupe	2017	-	2019
New Zealand	2012	-	2019