Note 18 - Income Taxes (Details) - Net Deferred Tax Assets and Liabilities (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation	$ (53,621)
Depreciation	96,137
Intangible drilling costs	(81,972)
Net operating loss carryforward — U.S.	92,375
Tax monetization transaction	(72,521)
Lease transaction	2,437
Investment tax credits	672
Production tax credits	71,313
Stock options amortization	3,464
Accrued liabilities and other	2,901
	61,185
Less — valuation allowance	(114,806)	(113,596)	(61,500)	(433)
Total	(53,621)
Revised [Member]
Deferred tax assets (liabilities):
Net foreign deferred taxes, primarily depreciation		(43,531)
Depreciation		44,701
Intangible drilling costs		(66,881)
Net operating loss carryforward — U.S.		103,771
Dividends from foreign subsidiaries		(20,995)
Tax monetization transaction		(26,470)
Lease transaction		3,410
Investment tax credits		1,971
Production tax credits		68,954
Alternative minimum tax credit		1,410
Stock options amortization		3,072
Accrued liabilities and other		653
		70,065
Less — valuation allowance		(113,596)	(61,500)
Total		$ (43,531)