Note 11 - Income Taxes (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%
Deferred Tax Assets, Gross	$ 478,068,000	$ 515,947,000
Deferred Tax Assets, Valuation Allowance	22,696,000	510,621,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	30,800,000
Increase in Deferred Tax Assets		6,400,000	4,700,000
Income Tax Expense (Benefit)	(453,234,000)	(56,000)	(557,000)
Deferred Tax Assets Related To Unrealized Built-in Losses	100,000,000
Gross Annual Deduction Limitation on Net Operating Loss Carryforwards	15,600,000
Deferred Tax Asset, Reduction Related to Built-In Loss	10,500,000	12,200,000	22,900,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	13,500,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	2,200,000	1,500,000
Subject to Federal and State Net Operating Loss Carryforward Limitations [Member]
Deferred Tax Assets, Operating Loss Carryforwards	148,000,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic, Before Tax	359,000,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local, Before Tax	438,000,000
Not Limited by Section 382 [Member]
Deferred Tax Assets, Operating Loss Carryforwards	143,000,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic, Before Tax	303,000,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local, Before Tax	696,000,000
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards	662,000,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	$ 1,134,000,000