XML 43 R8.htm IDEA: XBRL DOCUMENT v2.4.0.8
Consolidated Statements of Stockholders' Equity (USD $)
In Thousands, except Share data, unless otherwise specified
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Other Comprehensive Income [Member]
Retained Earnings [Member]
Beginning Balance at Dec. 31, 2010 $ 290,164 $ 53 $ 51,622 $ 750 $ 237,739
Beginning Balance (in shares) at Dec. 31, 2010   52,781,949      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 226,126       226,126
Other comprehensive income (44)     (44)  
Issuance of common stock upon exercise of options (in shares) 659,370 659,370      
Issuance of common stock upon exercise of options 19,614 0 19,614    
Issuance of common stock, net of costs (in shares)   2,857,143      
Issuance of common stock, net of costs 199,486 3 199,483    
Repurchases of common stock (in shares) (900,000) (899,847)      
Repurchases of common stock (199,666) (1) (158,730)   (40,935)
Stock-based compensation expense 61,582   61,582    
Excess stock option income tax benefits 45,548   45,548    
Ending Balance at Dec. 31, 2011 642,810 55 219,119 706 422,930
Ending Balance (in shares) at Dec. 31, 2011   55,398,615      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 17,152       17,152
Other comprehensive income 2,213     2,213  
Issuance of common stock upon exercise of options (in shares) 188,552 188,552      
Issuance of common stock upon exercise of options 4,124 1 4,123    
Stock-based compensation expense 73,948   73,948    
Excess stock option income tax benefits 4,426   4,426    
Ending Balance at Dec. 31, 2012 744,673 56 301,616 2,919 440,082
Ending Balance (in shares) at Dec. 31, 2012   55,587,167      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 112,403       112,403
Other comprehensive income 656     656  
Issuance of common stock upon exercise of options (in shares) 1,688,774 1,688,774      
Issuance of common stock upon exercise of options 124,557 2 124,555    
Note conversion (in shares)   2,331,060      
Note conversion 198,208 2 198,206    
Stock-based compensation expense 73,100   73,100    
Excess stock option income tax benefits 79,964   79,964    
Ending Balance at Dec. 31, 2013 $ 1,333,561 $ 60 $ 777,441 $ 3,575 $ 552,485
Ending Balance (in shares) at Dec. 31, 2013   59,607,001