XML 26 R6.htm IDEA: XBRL DOCUMENT v3.21.2
Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
shares in Millions, $ in Millions
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Treasury Stock
Balance at beginning of period (in shares) at Dec. 31, 2019   91.6        
Balance at beginning of period at Dec. 31, 2019 $ 882.6 $ 0.1 $ 1,675.9 $ 2.3 $ (695.7) $ (100.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock under equity incentive plans (in shares)   0.8        
Issuance of common stock under equity incentive plans 0.3   0.3      
Issuance of common stock for Employee Stock Purchase Plan 6.4   6.4      
Equity component of 2025 Notes issuance, net of issuance costs 289.4   289.4      
Repurchase and conversions of 2022 Notes (in shares)   3.0        
Repurchase and conversions of 2022 Notes 53.2   53.2      
Share-based compensation expense 54.6   54.6      
Net income 66.2       66.2  
Other comprehensive loss, net of tax 1.2     1.2    
Balance at end of period (in shares) at Jun. 30, 2020   95.4        
Balance at end of period at Jun. 30, 2020 1,353.9 $ 0.1 2,079.8 3.5 (629.5) (100.0)
Balance at beginning of period (in shares) at Mar. 31, 2020   92.3        
Balance at beginning of period at Mar. 31, 2020 934.5 $ 0.1 1,706.5 3.7 (675.8) (100.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock under equity incentive plans (in shares)   0.1        
Issuance of common stock under equity incentive plans 0.0          
Issuance of common stock for Employee Stock Purchase Plan 0.0          
Equity component of 2025 Notes issuance, net of issuance costs 289.4   289.4      
Repurchase and conversions of 2022 Notes (in shares)   3.0        
Repurchase and conversions of 2022 Notes 53.2   53.2      
Share-based compensation expense 30.7   30.7      
Net income 46.3       46.3  
Other comprehensive loss, net of tax (0.2)     (0.2)    
Balance at end of period (in shares) at Jun. 30, 2020   95.4        
Balance at end of period at Jun. 30, 2020 1,353.9 $ 0.1 2,079.8 3.5 (629.5) (100.0)
Balance at beginning of period (in shares) at Dec. 31, 2020   96.1        
Balance at beginning of period at Dec. 31, 2020 1,826.5 $ 0.1 2,125.3 3.2 (202.1) (100.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock under equity incentive plans (in shares)   0.6        
Issuance of common stock for Employee Stock Purchase Plan 8.7   8.7      
Share-based compensation expense 59.6   59.6      
Net income 103.2       103.2  
Other comprehensive loss, net of tax (0.4)     (0.4)    
Balance at end of period (in shares) at Jun. 30, 2021   96.7        
Balance at end of period at Jun. 30, 2021 1,997.6 $ 0.1 2,193.6 2.8 (98.9) (100.0)
Balance at beginning of period (in shares) at Mar. 31, 2021   96.7        
Balance at beginning of period at Mar. 31, 2021 1,903.2 $ 0.1 2,162.0 2.9 (161.8) (100.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock under equity incentive plans 0.0          
Issuance of common stock for Employee Stock Purchase Plan 0.0          
Share-based compensation expense 31.6   31.6      
Net income 62.9       62.9  
Other comprehensive loss, net of tax (0.1)     (0.1)    
Balance at end of period (in shares) at Jun. 30, 2021   96.7        
Balance at end of period at Jun. 30, 2021 $ 1,997.6 $ 0.1 $ 2,193.6 $ 2.8 $ (98.9) $ (100.0)