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Restricted Cash And Investments Held In Trust (Tables)
3 Months Ended
Mar. 31, 2013
Restricted Cash and Investments [Abstract]  
Restricted Cash and Investments Held in Trust
The following is a summary of restricted cash and investments held in trust:
 
As of March 31, 2013
 
As of December 31, 2012
 
(In thousands)
Restricted cash
$
38,121

 
$
22,496

Investments Held in Trust
88,830

 
84,576

 
$
126,951

 
$
107,072