Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Income Taxes (Deferred Tax Assets And Liabilities) (Details)

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Income Taxes (Deferred Tax Assets And Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2008
Income Tax Disclosure [Line Items]        
Valuation allowance on tax assets $ (54,357) $ (44,696) $ (17,296) $ (2,550)
The Netherlands [Member]
       
Income Tax Disclosure [Line Items]        
Depreciation/Impairment (15,251) (13,686)    
Debt          
Share-based compensation         
Inventory         
Intangibles          
Lessee receivables         
Loss-making contracts          
Interest expense          
Accrued maintenance liability    (2,574)    
Obligations under capital leases and debt obligations          
Investments          
Losses and credits forward (73,861) (64,346)    
Other (2,222) (4,610)    
Valuation allowance on tax assets 54,357 44,696    
Net deferred tax (asset) liability (36,977) (40,520)    
Ireland [Member]
       
Income Tax Disclosure [Line Items]        
Depreciation/Impairment 146,675 73,704    
Debt 16,516 18,662    
Share-based compensation         
Inventory         
Intangibles 2,452 3,800    
Lessee receivables         
Loss-making contracts          
Interest expense          
Accrued maintenance liability (3,859) 2,320    
Obligations under capital leases and debt obligations (6,064) (6,484)    
Investments (2,500) (2,500)    
Losses and credits forward (186,477) (126,049)    
Other 1,157 1,571    
Valuation allowance on tax assets          
Net deferred tax (asset) liability (32,100) (34,976)    
United States Of America [Member]
       
Income Tax Disclosure [Line Items]        
Depreciation/Impairment (1,599) 32,284    
Debt          
Share-based compensation   (778)    
Inventory   (6,575)    
Intangibles    4,581    
Lessee receivables   (611)    
Loss-making contracts 1,828 (481)    
Interest expense (8,174) (12,936)    
Accrued maintenance liability (1,731) (6,804)    
Obligations under capital leases and debt obligations          
Investments          
Losses and credits forward (6,058) (15,745)    
Other 814 (3,528)    
Valuation allowance on tax assets          
Net deferred tax (asset) liability (14,920) (10,593)    
Sweden [Member]
       
Income Tax Disclosure [Line Items]        
Depreciation/Impairment          
Debt          
Share-based compensation         
Inventory         
Intangibles          
Lessee receivables         
Loss-making contracts          
Interest expense          
Accrued maintenance liability          
Obligations under capital leases and debt obligations          
Investments          
Losses and credits forward (7,316) (8,471)    
Other 55       
Valuation allowance on tax assets          
Net deferred tax (asset) liability $ (7,261) $ (8,471)