CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Class A
Convertible Class C
Series A Preferred Stock
Common Stock
Class A
Common Stock
Convertible Class C
Preferred Stock
Series A Preferred Stock
Additional Paid-In Capital
Retained Earnings (Accumulated Deficit)
Total Shareholders’ Equity
Noncontrolling Interest
Common shares outstanding at beginning of period (in shares) at Dec. 31, 2017         261,338,000 15,661,000          
Balance at beginning of period at Dec. 31, 2017 $ 3,003,972       $ 26 $ 2 $ 0 $ 2,767,558 $ 66,639 $ 2,834,225 $ 169,747
Preferred shares outstanding at beginning of period (in shares) at Dec. 31, 2017             0        
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Restricted stock issued (in shares)         199,000            
Restricted stock forfeited (in shares)         (26,000)            
Restricted stock used for tax withholding (in shares)         (10,000)            
Restricted stock used for tax withholding (192)             (192)   (192)  
Option exercises (in shares)         10,000            
Option exercises 164             164   164  
Stock-based compensation 4,333             4,333   4,333  
Conversion of common shares from Class C to Class A, net of tax (in shares)         3,347,000 (3,347,000)          
Conversion of common shares from Class C to Class A, net of tax 6,669       $ 1 $ (1)   42,188   42,188 (35,519)
Net income (loss) 70,772               66,090 66,090 4,682
Common shares outstanding at end of period (in shares) at Mar. 31, 2018         264,858,000 12,314,000          
Balance at end of period at Mar. 31, 2018 3,085,718       $ 27 $ 1 $ 0 2,814,051 132,729 2,946,808 138,910
Preferred shares outstanding at end of period (in shares) at Mar. 31, 2018             0        
Common shares outstanding at beginning of period (in shares) at Dec. 31, 2018   264,323,328 12,003,183   265,859,000 12,003,000          
Balance at beginning of period at Dec. 31, 2018 3,243,869       $ 27 $ 1 $ 0 2,833,611 266,538 3,100,177 143,692
Preferred shares outstanding at beginning of period (in shares) at Dec. 31, 2018       1     0        
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Restricted stock issued (in shares)         436,000            
Restricted stock used for tax withholding (in shares)         (24,000)            
Restricted stock used for tax withholding $ (291)             (291)   (291)  
Option exercises (in shares) 0                    
Stock-based compensation $ 6,483             6,483   6,483  
Net income (loss) (8,537)               (8,112) (8,112) (425)
Common shares outstanding at end of period (in shares) at Mar. 31, 2019   264,416,875 12,003,183   266,271,000 12,003,000          
Balance at end of period at Mar. 31, 2019 $ 3,241,524       $ 27 $ 1 $ 0 $ 2,839,803 $ 258,426 $ 3,098,257 $ 143,267
Preferred shares outstanding at end of period (in shares) at Mar. 31, 2019       1     0