v2.4.0.8
Consolidated Statements of Stockholders' Equity (USD $)
In Thousands, except Share data
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Accumulated Other Comprehensive (Loss) Income
Beginning Balance at Dec. 31, 2009 $ 1,179,434 $ 2,840 $ 814,532 $ 369,459 $ (7,397)
Beginning Balance, shares at Dec. 31, 2009   284,010,000      
Net income 169,071     169,071  
Other comprehensive income (loss) 11,775       11,775
Stock issued in business acquisitions, shares   1,379,000      
Stock issued in business acquisitions, value 14,945 14 14,931    
Stock issued as director compensation, shares   28,000      
Stock issued as director compensation, value 290   290    
Stock-based compensation expense 9,684   9,684    
Exercise of stock options, shares   5,516,000      
Exercise of stock options, value 13,962 55 13,907    
Excess tax benefit from stock-based payments 15,000   15,000    
Ending Balance at Dec. 31, 2010 1,414,161 2,909 868,344 538,530 4,378
Ending Balance, shares at Dec. 31, 2010   290,933,000      
Net income 210,264     210,264  
Other comprehensive income (loss) (13,339)       (13,339)
Stock issued in business acquisitions, value 0        
Restricted stock units vested, shares   164,000      
Restricted stock units vested, value   2 (2)    
Stock issued as director compensation, shares   32,000      
Stock issued as director compensation, value 399   399    
Stock-based compensation expense 12,708   12,708    
Exercise of stock options, shares   2,768,000      
Exercise of stock options, value 11,919 28 11,891    
Excess tax benefit from stock-based payments 7,973   7,973    
Ending Balance at Dec. 31, 2011 1,644,085 2,939 901,313 748,794 (8,961)
Ending Balance, shares at Dec. 31, 2011   293,897,000      
Net income 261,225     261,225  
Other comprehensive income (loss) 9,720       9,720
Stock issued in business acquisitions, value 0        
Restricted stock units vested, shares   467,000      
Restricted stock units vested, value   5 (5)    
Stock-based compensation expense 15,634   15,634    
Exercise of stock options, shares   3,447,000      
Exercise of stock options, value 17,693 34 17,659    
Excess tax benefit from stock-based payments 15,737   15,737    
Ending Balance at Dec. 31, 2012 1,964,094 2,978 950,338 1,010,019 759
Ending Balance, shares at Dec. 31, 2012   297,811,000      
Net income 233,759     233,759  
Other comprehensive income (loss) 10,316       10,316
Restricted stock units vested, shares   594,000      
Restricted stock units vested, value   6 (6)    
Stock-based compensation expense 16,292   16,292    
Exercise of stock options, shares   2,143,000      
Exercise of stock options, value 13,647 21 13,626    
Excess tax benefit from stock-based payments 15,998   15,998    
Ending Balance at Sep. 30, 2013 $ 2,254,106 $ 3,005 $ 996,248 $ 1,243,778 $ 11,075
Ending Balance, shares at Sep. 30, 2013   300,548,000