Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Share Repurchase Program (Details)

v2.4.0.8
Stockholders' Equity Share Repurchase Program (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Dec. 31, 2011
Class of Stock [Line Items]      
Stock Repurchase Program, Number of Shares Authorized to be Repurchased 25,000,000   10,000,000
Stock Repurchase Program, Number of Additional Shares Authorized to be Repurchased   15,000,000  
Repurchase of common stock $ 10,498    
Common Stock [Member]
     
Class of Stock [Line Items]      
Repurchase of common stock, shares 1,000,000    
Repurchase of common stock $ 10