Note 17 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

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

	Year Ended December 31,
	2021		2020		2019
	(Dollars in thousands)
U.S	$	37,032	$	43,273	$	14,187
Non-U.S. (foreign)		66,519		125,444		123,116
Total income from continuing operations, before income taxes and equity in losses	$	103,551	$	168,717	$	137,303

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

	Year Ended December 31,
	2021			2020			2019
	(Dollars in thousands)
Current:
Federal	$	—		$	0		$	—
State		400			363			172
Foreign		25,096			61,574			16,969
Total current income tax expense	$	25,496		$	61,937		$	17,141
Deferred:
Federal		(3,267	)		22,682			(12,179	)
State		9,301			7,277			4,671
Foreign		(6,680	)		(24,893	)		35,980
Total deferred tax provision (benefit)		(646	)		5,066			28,472
Total Income tax provision	$	24,850		$	67,003		$	45,613

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

	Year Ended December 31,
	2021			2020			2019
U.S. federal statutory tax rate		21.0	%		21.0	%		21.0	%
Foreign tax credits		(0.4	)		(0.3	)		(22.8	)
Withholding tax		6.0			4.4			10.4
Valuation allowance - U.S.		(10.4	)		3			(3.7	)
State income tax, net of federal benefit		8.8			3.8			3.7
Uncertain tax positions		3.6			(7.5	)		2.1
Effect of foreign income tax, net		(5.2	)		8.5			9.7
Production tax credits		(4.2	)		(1.8	)		(5	)
Subpart F income		0.0			0.2			0.5
Tax on global intangible low-tax income		9.3			11.1			16.9
Intra-entity transfers of assets other than inventory		(1.8	)		(0.4	)		0.3
Noncontrolling interest		(2.5	)		(1.6	)		(0.4	)
Other, net		(0.1	)		(0.7	)		0.5
Effective tax rate		24.0	%		39.7	%		33.2	%

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

	December 31,
	2021			2020
	(Dollars in thousands)
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation	$	(54,899	)	$	(66,452	)
Depreciation		(62,996	)		(23,835	)
Intangible drilling costs		(11,501	)		(6,689	)
Net operating loss carryforward - U.S.		32,848			35,346
Tax monetization transaction		(62,533	)		(46,449	)
Right-of-use assets		(5,101	)		(3,753	)
Lease liabilities		5,148			3,846
State and Investment tax credits		813			813
Production tax credits		108,103			103,592
Foreign tax credits		92,240			92,077
Withholding tax		(20,521	)		(12,416	)
Stock options amortization		2,106			1,510
Basis difference in partnership interest		(45,683	)		(41,818	)
Excess business interest		13,662			10,971
Sale and leaseback transaction		64,070			—
Other assets		10,169			—
Accrued liabilities and other		4,161			6,777
Total		70,086			53,520
Less - valuation allowance		(11,298	)		(22,193	)
Total, net	$	58,788		$	31,327

Summary of Valuation Allowance [Table Text Block]

	2021			2020
	(Dollars in thousands)
Balance at beginning of the year	$	22,193		$	17,412
Additions to valuation allowance		2,029			20,214
Release of valuation allowance		(12,924	)		(15,433	)
Balance at end of the year	$	11,298		$	22,193

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

	Year Ended December 31,
	2021			2020
	(Dollars in thousands)
Non-current deferred tax assets	$	143,450		$	119,299
Non-current deferred tax liabilities		(84,662	)		(87,972	)
Non-current deferred tax assets, net		58,788			31,327
Uncertain tax benefit offset (1)		(95	)		(95	)
	$	58,693		$	31,232

Summary of Income Tax Contingencies [Table Text Block]

	Year Ended December 31,
	2021			2020
	(Dollars in thousands)
Balance at beginning of year	$	1,673		$	10,623
Additions based on tax positions taken in prior years		9			283
Additions based on tax positions taken in the current year		3,408			1,570
Reduction based on tax positions taken in prior years		(14	)		(10,803	)
Balance at end of year	$	5,076		$	1,673

Summary of Income Tax Examinations [Table Text Block]

Israel	2019 - 2021
Kenya	2018 - 2021
Guatemala	2016 - 2021
Honduras	2015 - 2021
Guadeloupe	2019 - 2021