XML 70 R59.htm IDEA: XBRL DOCUMENT v3.21.2
Redeemable Noncontrolling Interests - Narrative (Details)
9 Months Ended
Sep. 30, 2021
Minimum  
Noncontrolling Interest [Line Items]  
Exercise period 4 years
Maximum  
Noncontrolling Interest [Line Items]  
Exercise period 7 years