Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Summary Of Tax Credit Carryforwards) (Details)

v2.4.0.6
Income Taxes (Summary Of Tax Credit Carryforwards) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Other Tax Carryforward [Line Items]  
Total net operating loss amount $ 214,195
Tax windfall (1,853)
After limitations 212,342
Operating loss carryforward expiration year 2020
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 27,465
Operating loss carryforward expiration year 2021
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 50,430
Operating loss carryforward expiration year 2022
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 115,000
Operating loss carryforward expiration year 2023
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 5,712
Operating loss carryforward expiration year 2024
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 3,566
Operating loss carryforward expiration year 2025
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 1,707
Operating loss carryforward expiration year 2026
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 476
Operating loss carryforward expiration year 2028
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 1,360
Operating loss carryforward expiration year 2029
 
Other Tax Carryforward [Line Items]  
Net operating loss amount 4,074
Operating loss carryforward expiration year 2030
 
Other Tax Carryforward [Line Items]  
Net operating loss amount $ 4,405