XML 37 R71.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Equity - Additional Information (Details)
12 Months Ended
Jan. 23, 2020
$ / shares
Nov. 05, 2019
$ / shares
Aug. 06, 2019
$ / shares
Dec. 31, 2019
vote
$ / shares
shares
Dec. 31, 2018
$ / shares
shares
Equity [Line Items]          
Dividends declared | $ / shares   $ 0.03 $ 0.03    
Preferred stock, par value (in dollars per share) | $ / shares       $ 0.01 $ 0.01
Preferred stock, shares authorized       50,000,000.0 50,000,000
Preferred stock, shares outstanding       0 0
Class A Common Stock          
Equity [Line Items]          
Common stock, shares outstanding       281,241,443 280,205,293
Number of votes per share | vote       1  
Class B common stock          
Equity [Line Items]          
Common stock, shares outstanding       35,420,258 36,547,731
Number of votes per share | vote       1  
Time-based restricted stock(1)          
Equity [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number       386,390 715,852
Time-based restricted stock(1) | Class A Common Stock          
Equity [Line Items]          
Common stock, shares outstanding       400,000  
Performance-based restricted stock(2)          
Equity [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number       790,507 1,338,439
Subsequent Event | Common Stock | Class A Common Stock          
Equity [Line Items]          
Dividends declared | $ / shares $ 0.05        
Subsequent Event | Common Stock | PE Units          
Equity [Line Items]          
Dividends declared | $ / shares $ 0.05