Fair Value Measurements (Effect of Fair Value Measured Assets and Liabilities on Consolidated Statements of Operations) (Details) (USD $) | 3 Months Ended | 9 Months Ended |
In Thousands, unless otherwise specified | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Unrealized gain (loss) on marketable securities | $257 | | ($48) | | $2,039 | | $3,365 | |
Unrealized gains (losses) on derivatives | -817 | | -9,353 | | -7,177 | | -26,753 | |
Credit Default Swaps [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Unrealized gains (losses) on derivatives | -689 | | -1,376 | | -820 | | -3,100 | |
Derivative Assets [Member] | Credit Default Swaps [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | ' | | ' | | -886 | | -3,084 | |
Reclassified from Accumulated OCI into Interest Expense, Assets | ' | | ' | | 0 | | 0 | |
Interest Savings (Cost) [Member] | Derivative Assets [Member] | Credit Default Swaps [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | ' | | ' | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | -327 | | -8,810 | | -5,344 | | -24,481 | |
Unrealized gain (loss) on marketable securities | 257 | [1] | -48 | [1] | 2,039 | [1] | 3,365 | [1] |
Realized gain (loss) on marketable securities | 233 | [2],[3] | 591 | [2] | -206 | [2],[3] | -1,093 | [2] |
Unrealized gains (losses) on derivatives | -817 | [4] | -9,353 | [4] | -7,177 | [4] | -26,753 | [4] |
Gain or (Loss) Recognized in income, Net | -327 | | -8,810 | | -5,344 | | -24,481 | |
Reclassified from Accumulated OCI into Interest Expense, Liabilities | 29 | | 2 | | 53 | | 26 | |
Reclassified from Accumulated OCI into Interest Expense, Net | 29 | | 2 | | 53 | | 26 | |
Fair Value Measurements Recurring [Member] | Interest Rate Derivatives [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Unrealized gains (losses) on derivatives | -128 | | -7,978 | | -6,357 | | -23,669 | |
Reclassified from Accumulated OCI into Interest Expense, Net | 29 | | 2 | | 53 | | 26 | |
Fair Value Measurements Recurring [Member] | Credit Default Swaps [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Unrealized gains (losses) on derivatives | -689 | | -1,375 | | -820 | | -3,084 | |
Reclassified from Accumulated OCI into Interest Expense, Net | 0 | | 0 | | ' | | ' | |
Fair Value Measurements Recurring [Member] | Derivative Liabilities [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 168 | | 6,149 | | ' | | ' | |
Reclassified from Accumulated OCI into Interest Expense, Liabilities | 0 | | 0 | | ' | | ' | |
Fair Value Measurements Recurring [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | 4,654 | | 4,400 | | 11,396 | |
Reclassified from Accumulated OCI into Interest Expense, Liabilities | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Derivative Liabilities [Member] | Put Option [Member] | Short [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | -148 | | 582 | | -142 | | 1,411 | |
Reclassified from Accumulated OCI into Interest Expense, Liabilities | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Derivative Liabilities [Member] | Call Option [Member] | Short [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 316 | | 914 | | 402 | | 130 | |
Reclassified from Accumulated OCI into Interest Expense, Liabilities | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Non Derivative Liabilities [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | ' | | ' | | 4,660 | | 12,936 | |
Reclassified from Accumulated OCI into Interest Expense, Liabilities | ' | | ' | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Non Derivative Liabilities [Member] | Equity Securities [Member] | Short [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | -1 | | 0 | | -1 | |
Reclassified from Accumulated OCI into Interest Expense, Liabilities | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | -128 | | -12,632 | | -10,757 | | -35,065 | |
Reclassified from Accumulated OCI into Interest Expense, Assets | 29 | | 2 | | 53 | | 26 | |
Fair Value Measurements Recurring [Member] | Derivative Assets [Member] | Put and Call Options [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | -621 | | -870 | | -435 | | -3,200 | |
Reclassified from Accumulated OCI into Interest Expense, Assets | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Derivative Assets [Member] | Credit Default Swaps [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | -711 | | -1,375 | | ' | | ' | |
Reclassified from Accumulated OCI into Interest Expense, Assets | 0 | | 0 | | ' | | ' | |
Fair Value Measurements Recurring [Member] | Non Derivative Assets [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | -495 | | -14,959 | | -10,004 | | -37,417 | |
Reclassified from Accumulated OCI into Interest Expense, Assets | 29 | | 2 | | 53 | | 26 | |
Fair Value Measurements Recurring [Member] | Non Derivative Assets [Member] | Equity and U.S Treasury Securities [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | 965 | | -82 | | 2,074 | | 3,932 | |
Reclassified from Accumulated OCI into Interest Expense, Assets | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | 8,053 | | 6,215 | | 23,988 | |
Unrealized gain (loss) on marketable securities | 0 | | 0 | | 0 | | 0 | |
Realized gain (loss) on marketable securities | 0 | | 0 | | 0 | | 0 | |
Unrealized gains (losses) on derivatives | 0 | [2] | 8,053 | [2] | 6,215 | [2] | 23,988 | [2] |
Gain or (Loss) Recognized in income, Net | 0 | | 8,053 | | 6,215 | | 23,988 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Interest Rate Derivatives [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Unrealized gains (losses) on derivatives | 0 | | 8,053 | | 6,215 | | 23,988 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Credit Default Swaps [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Unrealized gains (losses) on derivatives | 0 | | 0 | | ' | | ' | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Derivative Liabilities [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | -5,571 | | ' | | ' | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | -5,571 | | -4,424 | | -16,466 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Derivative Liabilities [Member] | Put Option [Member] | Short [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Derivative Liabilities [Member] | Call Option [Member] | Short [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Non Derivative Liabilities [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | ' | | ' | | -4,424 | | -16,466 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Non Derivative Liabilities [Member] | Equity Securities [Member] | Short [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Liabilities | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | 0 | | 13,624 | | 10,639 | | 40,454 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Derivative Assets [Member] | Put and Call Options [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | 0 | | 0 | | 0 | | 0 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Derivative Assets [Member] | Credit Default Swaps [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | 0 | | 0 | | ' | | ' | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Non Derivative Assets [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | 0 | | 13,624 | | 10,639 | | 40,454 | |
Fair Value Measurements Recurring [Member] | Interest Savings (Cost) [Member] | Non Derivative Assets [Member] | Equity and U.S Treasury Securities [Member] | ' | | ' | | ' | | ' | |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ' | | ' | | ' | | ' | |
Gain or (Loss) Recognized in income, Assets | $0 | | $0 | | $0 | | $0 | |
|
[1] | Reported as “Unrealized gain (loss) on marketable securities†in the consolidated statements of operations. |
[2] | Included in “Other income†in the consolidated statements of operations. |
[3] | Includes cost of $22 and $66 for the three and nine months ended September 30, 2013 associated with credit default swaps. |
[4] | Reported as “Unrealized loss on derivatives†in the consolidated statements of operations. |