Note 17 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

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

	Year Ended December 31,
	2022		2021		2020
	(Dollars in thousands)
U.S	$	23,709	$	37,032	$	43,273
Non-U.S. (foreign)		71,900		66,519		125,444
Total income from continuing operations, before income taxes and equity in losses	$	95,609	$	103,551	$	168,717

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

	Year Ended December 31,
	2022			2021			2020
	(Dollars in thousands)
Current:
Federal	$	641		$	—		$	—
State		2,227			400			363
Foreign		29,370			25,096			61,574
Total current income tax expense	$	32,238		$	25,496		$	61,937
Deferred:
Federal		(17,179	)		(3,267	)		22,682
State		2,649			9,301			7,277
Foreign		(2,966	)		(6,680	)		(24,893	)
Total deferred tax provision (benefit)		(17,496	)		(646	)		5,066
Total Income tax provision	$	14,742		$	24,850		$	67,003

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

	Year Ended December 31,
	2022			2021			2020
U.S. federal statutory tax rate		21.0	%		21.0	%		21.0	%
Foreign tax credits		(3.8	)		(0.4	)		(0.3	)
Withholding tax		0.2			6.0			4.4
Valuation allowance - U.S.		(9.3	)		(10.4	)		3.0
State income tax, net of federal benefit		5.3			8.8			3.8
Uncertain tax positions		0.9			3.6			(7.5	)
Effect of foreign income tax, net		6.2			(5.2	)		8.5
Production tax credits		(4.0	)		(4.2	)		(1.8	)
Tax on global intangible low-tax income		4.8			9.3			11.1
Noncontrolling interest		(2.2	)		(2.5	)		(1.6	)
Other, net		(3.7	)		(1.9	)		(0.9	)
Effective tax rate		15.4	%		24.0	%		39.7	%

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

	December 31,
	2022			2021
	(Dollars in thousands)
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation	$	(49,295	)	$	(54,899	)
Depreciation		50,214			(62,906	)
Intangible drilling costs		(13,855	)		(11,501	)
Net operating loss carryforward - U.S.		26,824			32,848
Tax monetization transaction		(84,585	)		(62,533	)
Right-of-use assets		(5,824	)		(5,101	)
Lease liabilities		5,527			5,148
Production tax credits		109,109			108,103
Foreign tax credits		32,333			92,240
Withholding tax		(21,007	)		(20,521	)
Basis difference in partnership interest		(51,392	)		(45,683	)
Excess business interest		522			13,662
Sale and leaseback transaction		62,939			64,070
Other assets		13,655			12,998
Accrued liabilities and other		5,208			4,161
Total		80,373			70,086
Less - valuation allowance		(2,473	)		(11,298	)
Total, net	$	77,900		$	58,788

Summary of Valuation Allowance [Table Text Block]

	2022			2021
	(Dollars in thousands)
Balance at beginning of the year	$	11,298		$	22,193
Additions to valuation allowance		35			2,029
Release of valuation allowance		(8,860	)		(12,924	)
Balance at end of the year	$	2,473		$	11,298

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

	Year Ended December 31,
	2022			2021
	(Dollars in thousands)
Non-current deferred tax assets	$	161,365		$	143,450
Non-current deferred tax liabilities		(83,465	)		(84,662	)
Non-current deferred tax assets, net		77,900			58,788
Uncertain tax benefit offset (1)		(95	)		(95	)
	$	77,805		$	58,693

Summary of Income Tax Contingencies [Table Text Block]

	Year Ended December 31,
	2022			2021
	(Dollars in thousands)
Balance at beginning of year	$	5,076		$	1,673
Additions based on tax positions taken in prior years		—			9
Additions based on tax positions taken in the current year		364			3,408
Reduction based on tax positions taken in prior years		(47	)		(14	)
Reduction based on tax positions taken in the current year		(93	)		—
Balance at end of year	$	5,300		$	5,076

Summary of Income Tax Examinations [Table Text Block]

Israel	2019	-	2022
Kenya	2018	-	2022
Guatemala	2018	-	2022
Honduras	2017	-	2022
Guadeloupe	2019	-	2022