XML 68 R57.htm IDEA: XBRL DOCUMENT v3.21.1
Stock Transactions and Unit Redemptions - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 08, 2021
Mar. 09, 2018
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Aug. 01, 2018
Class of Stock [Line Items]            
Payment percentage of the gross proceeds from the sale of shares   2.00%        
Stock repurchase program and unit redemption remaining authorized amount     $ 245,422      
CF & Co [Member]            
Class of Stock [Line Items]            
Common stock, issued during the period     0 200,000    
Proceeds from issuance of common stock       $ 700    
Class B Common Stock [Member]            
Class of Stock [Line Items]            
Common stock, issued during the period     0 0    
Common stock outstanding     45,884,000   45,884,000  
Common stock, shares issued     45,884,000   45,884,000  
Common stock value issued     $ 459   $ 459  
Class A Common Stock [Member]            
Class of Stock [Line Items]            
Common stock, issued during the period     262,373 71,663    
Common stock outstanding     334,364,000   323,018,000  
Common stock, shares issued     385,857,000   373,545,000  
Common stock value issued     $ 3,858   $ 3,735  
Proceeds from issuance of common stock $ 300,000          
Company's repurchase and additional redemption authority amount           $ 300,000
Stock repurchase program and unit redemption remaining authorized amount     $ 245,400      
Class A Common Stock [Member] | CF & Co [Member]            
Class of Stock [Line Items]            
Common stock, issued during the period     0      
Class A Common Stock [Member] | New CEO Program [Member]            
Class of Stock [Line Items]            
Maximum amount under the controlled equity offering program   $ 300,000        
Common stock, shares issued     17,600,000      
Common stock value issued     $ 210,800      
Proceeds from issuance of common stock $ 89,200