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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2013
Fair Value Disclosures [Abstract]  
Summary Of Financial Assets And Liabilities Accounted For At Fair Value
The table below sets forth, by level, the Company’s financial assets and liabilities that are recorded at fair value in the accompanying condensed consolidated balance sheet: 
 
 
Fair Value at September 30, 2013
 
 
Total
 
Level 1
 
Level 2
 
Level 3
 
 
(In thousands)
Assets:
 
 

 
 

 
 

 
 

Investments in marketable securities
 
$
261,414

 
$
101,338

 
$
160,076

 
$

Derivatives
 
27,061

 
22,750

 

 
4,311

Total assets
 
$
288,475

 
$
124,088

 
$
160,076

 
$
4,311

Liabilities:
 
 

 
 

 
 

 
 

Derivatives
 
$
421

 
$

 
$
204

 
$
217

Summary Of Change In The Fair Values Of Financial Instruments Categorized As Level 3
The following table summarizes the change in the fair values of financial instruments categorized as level 3.
 
 
Three Months Ended September 30, 2013
 
Nine Months Ended September 30, 2013
 
 
(In thousands)
Balance, beginning of period
 
$
3,438

 
$
8,174

Realized and unrealized losses recognized in earnings, net
 
(570
)
 
(9,882
)
Purchases
 
1,464

 
7,317

Issuances
 

 
(25
)
Settlements
 
(238
)
 
(1,490
)
Ending balance
 
$
4,094

 
$
4,094