XML 88 R74.htm IDEA: XBRL DOCUMENT v3.21.1
Earnings Per Share (Components of Basic and Diluted Earnings Per Share) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Nov. 15, 2019
Jun. 10, 2014
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]        
Net income (loss) attributable to J2 Global, Inc. common shareholders $ 77,922 $ (6,404)    
Net income (loss) available to participating securities (88) 0    
Net income (loss) available to J2 Global, Inc. common shareholders $ 77,834 $ (6,404)    
Denominator:        
Weighted-average outstanding shares of common stock - basic (in shares) 44,399,149 47,620,774    
Dilutive effect of:        
Equity incentive plans (in shares) 108,703 0    
Convertible debt (in shares) 2,224,020 0    
Common stock and common stock equivalents (in shares) 46,731,872 47,620,774    
Net income (loss) per share:        
Basic (in usd per share) $ 1.75 $ (0.13)    
Diluted (in usd per share) $ 1.67 $ (0.13)    
Options excluded from the computation of diluted earnings per share (in shares) 0 0    
3.25% Convertible Notes | Convertible Debt        
Net income (loss) per share:        
Stated interest rate       3.25%
1.75% Convertible Notes | Convertible Debt        
Net income (loss) per share:        
Stated interest rate     1.75%  
Share-based Payment Arrangement        
Net income (loss) per share:        
Options excluded from the computation of diluted earnings per share (in shares)   40,074    
Convertible Debt Securities | 3.25% Convertible Notes        
Net income (loss) per share:        
Options excluded from the computation of diluted earnings per share (in shares)   1,460,431    
Convertible Debt Securities | 1.75% Convertible Notes        
Net income (loss) per share:        
Options excluded from the computation of diluted earnings per share (in shares)   0