XML 86 R5.htm IDEA: XBRL DOCUMENT v2.4.0.8
Consolidated Statements of Shareholders' Equity (USD $)
In Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Balance at Dec. 31, 2010 $ 1,447,454 $ 958 $ 658,612 $ 787,884
Balance, Shares at Dec. 31, 2010   95,874    
Net income 217,997     217,997
Common stock issued under employee stock option and stock purchase plan 31,362 13 31,349  
Common stock issued under employee stock option and stock purchase plan, shares   1,342    
Issuance of restricted stock and vesting of deferred stock   7 (7)  
Issuance of restricted stock and vesting of deferred stock, shares   680    
Stock-based compensation expense 27,092   27,092  
Forfeitures of restricted stock            
Forfeitures of restricted stock, shares   (30)    
Excess tax benefit related to employee stock incentive plans 7,111   7,111  
Balance at Dec. 31, 2011 1,731,016 978 724,157 1,005,881
Balance, Shares at Dec. 31, 2011   97,866    
Net income 240,907     240,907
Common stock issued under employee stock option and stock purchase plan 28,810 13 28,797  
Common stock issued under employee stock option and stock purchase plan, shares   1,320    
Issuance of restricted stock and vesting of deferred stock   9 (9)  
Issuance of restricted stock and vesting of deferred stock, shares   930    
Stock-based compensation expense 28,437   28,437  
Forfeitures of restricted stock            
Forfeitures of restricted stock, shares   (78)    
Excess tax benefit related to employee stock incentive plans 6,198   6,198  
Balance at Dec. 31, 2012 2,035,368 1,000 787,580 1,246,788
Balance, Shares at Dec. 31, 2012   100,038    
Net income 280,517     280,517
Common stock issued under employee stock option and stock purchase plan 28,697 14 28,683  
Common stock issued under employee stock option and stock purchase plan, shares   1,331    
Issuance of restricted stock and vesting of deferred stock   9 (9)  
Issuance of restricted stock and vesting of deferred stock, shares   922    
Stock-based compensation expense 31,288   31,288  
Forfeitures of restricted stock            
Forfeitures of restricted stock, shares   (28)    
Repurchased common stock (51,863) (11) (8,570) (43,282)
Repurchased common stock, shares (1,100) (1,056)    
Excess tax benefit related to employee stock incentive plans 18,981   18,981  
Balance at Dec. 31, 2013 $ 2,342,988 $ 1,012 $ 857,953 $ 1,484,023
Balance, Shares at Dec. 31, 2013   101,207