XML 53 R42.htm IDEA: XBRL DOCUMENT v3.22.2
Shareholders’ Equity (Details) - USD ($)
 3 Months Ended 6 Months Ended 87 Months Ended
Mar. 31, 2015
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Dec. 31, 2021
Dec. 31, 2018
Dec. 31, 2011
Class of Stock [Line Items]              
Common stock, shares authorized (in shares)   195,000,000   195,000,000 195,000,000    
Common stock, par value (in dollars per share)   $ 0.01   $ 0.01 $ 0.01    
Common stock, shares issued (in shares)   98,456,895   98,456,895 98,418,132    
Common stock, shares, outstanding (in shares)   91,270,374   91,270,374      
Preferred stock, shares authorized (in shares)   5,000,000   5,000,000 5,000,000    
Preferred stock par value (in dollars per share)   $ 0.01   $ 0.01 $ 0.01    
Preferred shares issued (in shares)           160,000  
Number of shares issued for each share of preferred stock (in shares)   100   100      
Stock repurchase program, authorized amount   $ 130,000,000   $ 130,000,000     $ 60,000,000
Stock repurchase program, authorized, increase amount $ 70,000,000            
Treasury shares acquired (in shares)   7,186,521   7,186,521      
Treasury stock, value   $ 86,300,000   $ 86,300,000 $ 86,300,000    
Treasury stock, shares, acquired (in shares)       0      
Stock repurchase program, remaining authorized repurchase amount   $ 43,700,000   $ 43,700,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Treasury shares outstanding, period end (in shares)   7,186,521   7,186,521      
Ending balance (in shares)   91,270,374   91,270,374      
Convertible preferred shares              
Class of Stock [Line Items]              
Preferred shares outstanding (in shares)   58,376 63,274 58,376 58,542    
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Preferred shares outstanding, period start (in shares)   58,542 63,589        
Conversion of convertible preferred stock (in shares)   (166) (315)        
Issuance for share-based compensation plans (in shares)   0 0        
Preferred shares outstanding, period end (in shares)   58,376 63,274 58,376      
Treasury              
Class of Stock [Line Items]              
Treasury shares acquired (in shares)   7,186,521 7,186,521 7,186,521 7,186,521    
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Treasury shares outstanding, period start (in shares)   7,186,521 7,186,521        
Conversion of convertible preferred stock (in shares)   0 0        
Issuance for share-based compensation plans (in shares)   0 0        
Treasury shares outstanding, period end (in shares)   7,186,521 7,186,521 7,186,521      
Common stock              
Class of Stock [Line Items]              
Common stock, shares, outstanding (in shares)   91,270,374 90,129,118 91,270,374 91,231,611    
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Beginning balance (in shares)   91,231,611 90,055,797        
Conversion of convertible preferred stock (in shares)   (16,635) (31,465)        
Issuance for share-based compensation plans (in shares)   22,128 41,856        
Ending balance (in shares)   91,270,374 90,129,118 91,270,374