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Equity (Tables)
 12 Months Ended
Dec. 31, 2013
Equity [Abstract]  
Summary of preferred stock
 
As of December 31, 2013
 
As of December 31, 2012
(In thousands)
Authorized
 
Issued
 
Outstanding
 
Authorized
 
Issued
 
Outstanding
Series A
1,750

 
—

 
—

 
1,750

 
—

 
—

Series X junior participating
1,000

 
—

 
—

 
1,000

 
—

 
—

Undesignated
5,250

 
—

 
—

 
5,250

 
—

 
—

Total preferred stock
8,000

 
—

 
—

 
8,000

 
—

 
—
Summary of common stock
 
As of December 31, 2013
 
As of December 31, 2012
(In thousands)
Authorized
 
Issued
 
Outstanding
 
Authorized
 
Issued
 
Outstanding
Common stock
1,000,000

 
255,973

 
236,332

 
1,000,000

 
254,237

 
236,582