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Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 2012
Fair Value Measurements  
Fair value measurements of financial assets and liabilities

 

 

Financial Instrument

 

Fair Value

 

Level 1

 

Level 2

 

Level 3

 

Marketable equity securities

 

$

17,396

 

$

17,396

 

$

—

 

$

—

 

Interest-rate swap liabilities(1) 

 

(12,903

)

—

 

(12,903

)

—

 

Warrants(1) 

 

1,385

 

—

 

—

 

1,385

 

 

 

$

5,878

 

$

17,396

 

$

(12,903

)

$

1,385

 

 

(1)          Interest rate swap and common stock warrant values are determined based on observable and unobservable market assumptions using standardized derivative pricing models.