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Fair Value Disclosures (Tables)
12 Months Ended
Dec. 31, 2011
Fair Value Disclosures  
Estimated Fair Values and Carrying Amounts of Assets and Liabilities
The following table shows the estimated fair values of the Company's financial instruments, along with the carrying amounts of the related assets (liabilities).
 
December 31, 2011
 
December 31, 2010
 
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
Assets:
 
 
 
 
 
 
 
Cash and cash equivalents
$
80,120

 
$
80,120

 
$
112,531

 
$
112,531

Restricted cash
257,368

 
257,368

 
226,015

 
226,015

Liabilities:
 
 
 
 
 
 
 
Debt and other obligations
$
6,885,699

 
$
7,355,652

 
$
6,778,894

 
$
7,121,156

Activity for Interest Rate Swap Liabilities Classified as Level 3 Fair Value Measurements
The following table shows a summary of the activity for fair value classified as Level 3 during the year ended December 31, 2010: 
 
Fair Value Measurements Using
Significant Unobservable Inputs (Level 3)
 
Interest Rate Swap, Net
 
December 31, 2010
Beginning balance
$
300,040
 
Settlements
(703,754
)
Less: total (gains) loss:
 
Included in earnings (a)
283,062
 
Included in other comprehensive income (loss)
125,850
 
Transfers out of Level 3 (b)
(5,198
)
Ending balance
$
 
____________________
(a)
As of December 31, 2010, there were no unrealized gains or losses relating to liabilities still held at the reporting date.
(b)
As of December 31, 2010, the interest rate swaps were transferred from Level 3 to Level 2 because of a decrease in the magnitude of unobservable inputs in relation to the observable inputs, including settlement value.