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Net Loss Per Share
 6 Months Ended
Jun. 30, 2020
Earnings Per Share [Abstract]  
Net Loss Per Share Net Loss Per Share
For the periods presented, the following Class A common stock and Class C capital stock equivalents were excluded from the calculations of diluted net loss per share because their effect would have been antidilutive (in thousands):
 Three Months Ended
June 30,		Six Months Ended
June 30,
 2020201920202019
Weighted-average Class A common stock and Class C capital stock option awards outstanding25,202  19,502  22,649  19,656  
Weighted-average Class A common stock and Class C capital stock restricted stock units outstanding9,086  7,230  8,354  6,548  
Class A common stock issuable upon conversion of the convertible notes maturing in 2020400  411  400  411  
Class C capital stock issuable upon conversion of the convertible notes maturing in 2021, 2024 and 20267,232  —  7,316  —  
Total Class A common stock and Class C capital stock equivalents41,920  27,143  38,719  26,615  
Since we expect to settle the principal amount of the outstanding Notes in cash, we use the treasury stock method for calculating any potential dilutive effect of the conversion spread on diluted net income per share, if applicable. The conversion spread for each of the notes has a dilutive impact on diluted net income per share when the market price of the Company’s Class C capital stock at the end of the period exceeds the conversion price per share. The following table presents the conversion spread and conversion price per share of Class C capital stock for each of the convertible senior notes (in thousands, except per share amounts):
Maturity DateConversion SpreadConversion Price per Share
September 1, 202611,492  $43.51  
May 15, 20258,408  67.20  
September 1, 202415,468  43.51  
July 1, 20234,769  78.37  
December 1, 20215,067  52.36