XML 98 R87.htm IDEA: XBRL DOCUMENT v3.21.1
Common and Preferred Stock - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended
Aug. 05, 2020
Mar. 31, 2021
Feb. 07, 2019
Common Stock Repurchases (Textual) [Abstract]      
Authorized repurchase of additional shares     500,000
Repurchased shares   53,784  
Shares remain available for repurchase   546,283  
Common stock purchased for treasury   $ 2.8  
Convertible Preferred Stock (as Converted to Common Stock)      
Class Of Stock [Line Items]      
Preferred stock dividend rate percentage 5.50%    
Frequency of periodic payment of cumulative dividend quarterly    
Convertible preferred stock conversion price per share $ 21.25    
Dividends paid in kind   $ 1.9  
Crestview Partners | Convertible Preferred Stock (as Converted to Common Stock)      
Class Of Stock [Line Items]      
Convertible Preferred Stock, Shares Issued upon Conversion 135,000    
Preferred Stock, Par value $ 0.01    
Purchase price $ 135.0    
Shares issued, price per share $ 1,000    
Delayed draw commitment $ 45.0    
Capital raising expense $ 9.2