Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Grants of Stock Options) (Details)

v3.10.0.1
Stock-Based Compensation (Grants of Stock Options) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense   $ 28,207 $ 26,583 $ 16,128
Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   1 year    
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   5 years    
LVNTA and LVNTB shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to unvested options $ 13,500   13,500  
Incremental compensation expense from the exchange $ 6,400   $ 6,400  
Series A common stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options granted (in shares)   10    
Series A common stock | Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options granted (in shares)   10    
Weighted average GDFV of options granted (in dollars per share)   $ 14.09    
LVNTA shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options granted (in shares) 946      
Weighted average GDFV of options granted (in dollars per share) $ 8.53      
LVNTA shares | Directors and Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options granted (in shares)     188 114
Weighted average GDFV of options granted (in dollars per share)     $ 16.52 $ 12.25
LVNTB shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options granted (in shares) 1,100      
Weighted average GDFV of options granted (in dollars per share) $ 6.94      
LVNTB shares | CEO        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options granted (in shares)   143 269 209
Weighted average GDFV of options granted (in dollars per share)   $ 16.55 $ 15.41 $ 12.48
Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to unvested options   $ 9,400    
Volatility rate, minimum   25.90% 25.90% 25.90%
Volatility rate, maximum   31.60% 31.60% 31.60%
Dividend rate   0.00%    
Options | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected term   4 years 10 months 25 days    
Options | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected term   6 years 3 months 25 days    
Options | LVNTA and LVNTB shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 9,200      
Options | Series A common stock | Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   1 year    
Options | LVNTA shares | Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   1 year    
Options | LVNTA shares | Employees | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   3 years    
Options | LVNTA shares | Employees | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   5 years    
Performance RSUs | LVNTB shares | CEO        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period       1 year
Number of shares granted (in shares)       16
Fair value of shares granted (in dollars per share)       $ 38.79