Contractual Obligations, Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule of non-cancelable long-term operating and capital lease obligations and unconditional purchase commitments
For each of the next five years and beyond, the Company has the following contractual obligations, long-term operating and capital lease obligations and unconditional purchase commitments (in thousands):
 
Convertible notes
 
Term note (1)
 
Unconditional
purchase
commitments
 
Operating
lease
commitments
 
Capital
lease
obligations
 
Principal
 
Interest
 
Principal
 
Interest
 
Year Ending December 31:
 
 
 
 
 
 
 
 
 
 
 
 
 
2014
$
—

 
$
674

 
$
568

 
$
33

 
$
1,325

 
$
2,126

 
$
1,005

2015
—

 
674

 
620

 
28

 
848

 
1,958

 
1,125

2016
14,197

 
281

 
620

 
20

 
223

 
1,702

 
224

2017
—

 
—

 
620

 
13

 
—

 
944

 
—

2018
—

 
—

 
620

 
5

 
—

 
285

 
—

2019 and beyond
—

 
—

 
52

 
—

 
—

 
—

 
—

Future minimum payments
$
14,197

 
$
1,629

 
$
3,100

 
$
99

 
$
2,396

 
$
7,015

 
2,354

Less: amount representing interest
 

 
 

 
 
 
 
 
 

 
 

 
(59
)
Present value of capital lease obligations
 

 
 

 
 
 
 
 
 

 
 

 
$
2,295