XML 38 R31.htm IDEA: XBRL DOCUMENT v2.4.0.8
Other Assets (Tables)
9 Months Ended
Sep. 30, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Assets
Other assets consist of the following (in thousands):
 
September 30,
2013
 
December 31,
2012
Debt issuance costs, net of amortization
$
64,283

 
$
83,643

Restricted deposits
27,952

 
27,947

Notes receivable on asset retirement obligations
11,655

 
11,433

Investments
14,139

 
10,348

Other
6,601

 
10,881

Total other assets
$
124,630

 
$
144,252