XML 99 R89.htm IDEA: XBRL DOCUMENT v3.22.2
Stockholders' Equity - At-the-Market (Details) - At The Market - USD ($)
$ in Millions
 6 Months Ended
Aug. 16, 2019
Jun. 30, 2022
Class of Stock [Line Items]    
Distribution agreement term 3 years  
At-the-market, maximum potential proceeds $ 400.0  
Sales commission of gross sales price 2.00%  
Number of shares issued (in shares)   0
Value remaining outstanding for future offerings   $ 390.0