XML 57 R45.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Shareholders’ Equity (Details) - USD ($)
 3 Months Ended 108 Months Ended
Mar. 31, 2015
Mar. 31, 2024
Dec. 31, 2023
Dec. 31, 2011
Dec. 31, 2008
Class of Stock [Line Items]          
Common stock, shares authorized (in shares)   195,000,000 195,000,000    
Common stock, par value (in dollars per share)   $ 0.01 $ 0.01    
Common stock, shares issued (in shares)   99,887,016 99,876,385    
Common stock, shares, outstanding (in shares)   92,700,495 92,689,864    
Preferred stock, shares authorized (in shares)   5,000,000 5,000,000    
Preferred stock par value (in dollars per share)   $ 0.01 $ 0.01    
Number of shares issued for each share of preferred stock (in shares)   100      
Stock repurchase program, authorized amount   $ 130,000,000   $ 60,000,000  
Stock repurchase program, authorized, increase amount $ 70,000,000        
Treasury shares acquired (in shares)   7,186,521      
Treasury stock, value   $ 86,300,000 $ 86,300,000    
Treasury stock, shares, acquired (in shares)   0      
Stock repurchase program, remaining authorized repurchase amount   $ 43,700,000      
Convertible preferred shares          
Class of Stock [Line Items]          
Preferred stock par value (in dollars per share)   $ 0.01      
Preferred shares issued (in shares)         160,000
Preferred shares outstanding (in shares)   52,238 52,284