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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]  
Future Minimum Annual Lease and Service Payments
As of December 31, 2012, future minimum annual lease and service payments for the Company were as follows:
 
Equipment Leases (a)
 
Service Payments
 
Facility Leases (b)
 
(dollars in thousands)
2013
$
3,301

 
$
11,536

 
$
17,510

2014
1,548

 
8,410

 
15,433

2015
1,051

 
2,102

 
12,368

2016
194

 
196

 
11,481

2017
—

 
—

 
9,947

Thereafter
—

 
—

 
43,728

 
$
6,094

 
$
22,244

 
$
110,467

(a)
Equipment Leases include the Company's commitments relating to operating and capital leases. See Note 20 for further information on the capital lease minimum payments which are included in the table.
(b)
The Company has entered into various agreements to sublease certain of its premises. The Company recorded sublease income related to these leases of $1.2 million, $0.3 million and $0.8 million for the years ended December 31, 2012, 2011 and 2010, respectively.