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Note 18 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

		Year Ended December 31,
		2017 (As restated)				2016				2015
		(Dollars in thousands)
U.S.		$	13,680			$	(7,109	)		$	(236	)
Non-U.S. (foreign)			157,050				148,197				113,835
Total income from continuing operations, before income taxes and equity in losses of investees		$	170,730			$	141,088			$	113,599

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

		Year Ended December 31,
		2017 (As restated)				2016				2015
		(Dollars in thousands)
Current:
Federal		$	43,935			$	—			$	51
State			43				(276	)			252
Foreign			11,186				13,554				18,808
Total current income tax expense		$	55,164			$	13,278			$	19,111
Deferred:
Federal			(55,718	)			57				168
State			(3,284	)			—				—
Foreign			25,502				23,724				(35,336	)
Total deferred tax provision (benefit)			(33,500	)			23,781				(35,168	)
Total provision (benefit) for income taxes		$	21,664			$	37,059			$	(16,057	)

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

		Year Ended December 31,
		2017 (As restated)				2016				2015
		(Dollars in thousands)
Other deferred tax expense (exclusive of the effect of other components listed below)		$	4,337			$	(1,822	)		$	2,034
Usage (benefit) of operating loss carryforwards - U.S.			72,293				(28,065	)			(5,576	)
Change in valuation allowance			(38,548	)			23,336				(40,999	)
Change in foreign valuation allowance			—				—				(49,701	)
Change in foreign income tax			25,502				23,724				14,365
Change in lease transaction			—				—				4,574
Change in tax monetization transaction			(3,091	)			51,040				16,004
Change in depreciation			(29,265	)			(42,411	)			(205	)
Change in foreign tax credits			(86,206	)			—				—
Change in withholding tax			14,400				—				—
Change in state and investment tax credits			(144	)			—				—
Change in intangible drilling costs			19,008				4,511				4,932
Change in production tax credits and alternative minimum tax credit			(2,086	)			(11,643	)			610
Basis difference in partnership interests			(9,700	)			5,111				18,794
		$	(33,500	)		$	23,781			$	(35,168	)

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

		Year Ended December 31,
		2017 (As restated)				2016				2015
U.S. federal statutory tax rate			35.0	%			35.0	%			35.0	%
Impact of federal tax reform			(12.4	)			-				-
Transition tax inclusion			42.1				-				-
Foreign tax credits			(50.5	)			-				-
Tax basis adjustment			-				(4.9	)			34.9
Withholding tax			34.1				-				-
Valuation allowance - U.S.			(22.6	)			16.5				(36.1	)
Valuation allowance – foreign			-				-				(43.8	)
State income tax, net of federal benefit			1.1				(0.6	)			0.6
Effect of foreign income tax, net			(10.7	)			(10.3	)			(5.9	)
Production tax credits			(1.2	)			(8.3	)			(0.1	)
Subpart F income			1.7				0.3				1.3
Other, net			(3.9	)			(1.4	)			-
Effective tax rate			12.7	%			26.3	%			(14.1%	)

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

		December 31,
		2017 (As restated)				2016
		(Dollars in thousands)
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation		$	(61,961	)		$	(36,413	)
Depreciation			(65,315	)			(10,253	)
Intangible drilling costs			13,003				24,856
Net capital loss carryforward - U.S.			55,084				127,633
Tax monetization transaction			(13,134	)			(96,293	)
State and Investment tax credits			813				1,341
Production tax credits			85,193				82,435
Foreign tax credits			86,206				-
Withholding tax			(14,400	)			-
Stock options amortization			1,166				1,476
Basis difference in partnership interest			(16,817	)			(18,200	)
Accrued liabilities and other			3,109				3,241
Total deferred tax assets (liabilities)			72,947				79,823
Less - valuation allowance			(77,571	)			(116,234	)
Total		$	(4,624	)		$	(36,411	)

Summary of Valuation Allowance [Table Text Block]

		December 31,
		2017 (As restated)				2016				2015
		(Dollars in thousands)
Balance at beginning of the year		$	116,234			$	92,898			$	183,598
Additions to valuation allowance			46,560				23,336				-
Release of valuation allowance			(85,223	)			-				(90,700	)
Balance at end of the year		$	77,571			$	116,234			$	92,898

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

		December 31,
		2017 (As restated)				2016				2015
		(Dollars in thousands)
Non-current deferred tax assets		$	57,337			$	—			$	—
Non-current deferred tax liabilities			(61,961	)			(36,411	)			(28,989	)
Total Non-current deferred tax assets, net			(4,624	)			(36,411	)			(28,989	)
Uncertain tax benefit offset (1)			(95	)			—				—
		$	(4,719	)		$	(36,411	)		$	(28,989	)

Summary of Income Tax Contingencies [Table Text Block]

		Year Ended December 31,
		2017 (As restated)				2016				2015
		(Dollars in thousands)
Balance at beginning of year		$	4,609			$	7,781			$	4,477
Additions based on tax positions taken in prior years			5				675				(1	)
Additions based on tax positions taken in the current year			2,580				1,532				4,619
Reduction based on tax positions taken in prior years			(837	)			(5,379	)			(1,314	)
Balance at end of year		$	6,357			$	4,609			$	7,781

Summary of Income Tax Examinations [Table Text Block]

Israe l	2015	—	2017
Kenya	2012	—	2017
Guatemala	2013	—	2017
Honduras	2012	—	2017
Guadeloupe	2015	—	2017
Philippines	2010	—	2017
New Zealand	2012	—	2017

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