Quarterly report pursuant to Section 13 or 15(d)

Equity - Summary of Unvested Shares (Details)

v3.20.2
Equity - Summary of Unvested Shares (Details) - USD ($)
$ / shares in Units, $ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Restricted Shares of Common Stock    
Shares    
Beginning Balance (in shares) 750,242 1,386,756
Granted (in shares) 194,077 150,493
Vested (in shares) (576,880) (781,218)
Forfeited (in shares) (50) (5,789)
Ending Balance (in shares) 367,389 750,242
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 20.08 $ 19.00
Granted (in usd per share) 32.93 23.99
Vested (in usd per share) 19.50 18.91
Forfeited (in usd per share) 31.00 20.62
Ending Balance (in usd per share) $ 27.77 $ 20.08
Value    
Beginning Balance $ 15.1 $ 26.4
Granted 6.4 3.6
Vested (11.3) (14.8)
Forfeited 0.0 (0.1)
Ending Balance $ 10.2 $ 15.1
Restricted stock units    
Shares    
Beginning Balance (in shares) 435,578 393,148
Granted (in shares) 23,342 46,586
Vested (in shares) (439,986) (1,380)
Forfeited (in shares) 0 (2,776)
Ending Balance (in shares) 235,866 435,578
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 20.12 $ 19.55
Granted (in usd per share) 27.18 25.10
Vested (in usd per share) 19.04 21.68
Forfeited (in usd per share) 0 22.23
Ending Balance (in usd per share) $ 21.78 $ 20.12
Value    
Beginning Balance $ 8.8 $ 7.7
Granted 0.6 1.2
Vested (8.4) 0.0
Forfeited 0.0 (0.1)
Ending Balance $ 5.1 $ 8.8
Restricted stock units | Minimum    
Value    
Vesting percentage 0.00%  
Restricted stock units | Maximum    
Value    
Vesting percentage 200.00%  
Incremental performance shares granted    
Shares    
Granted (in shares) 216,932  
Weighted Average Grant Date Fair Value    
Granted (in usd per share) $ 18.99  
Value    
Granted $ 4.1  
LTIP time-based vesting units    
Shares    
Beginning Balance (in shares) 201,310 0
Granted (in shares) 165,346 209,330
Vested (in shares) (80,974) (8,020)
Forfeited (in shares) 0 0
Ending Balance (in shares) 285,682 201,310
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 25.84 $ 0
Granted (in usd per share) 18.56 25.84
Vested (in usd per share) 25.87 25.82
Forfeited (in usd per share) 0 0
Ending Balance (in usd per share) $ 21.62 $ 25.84
Value    
Beginning Balance $ 5.2 $ 0.0
Granted 3.1 5.4
Vested (2.1) (0.2)
Forfeited 0.0 0.0
Ending Balance $ 6.2 $ 5.2
LTIP market-based vesting units    
Shares    
Beginning Balance (in shares) 180,500 0
Granted (in shares) 132,204 180,500
Vested (in shares) 0 0
Forfeited (in shares) 0 0
Ending Balance (in shares) 312,704 180,500
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 26.70 $ 0
Granted (in usd per share) 12.25 26.70
Vested (in usd per share) 0 0
Forfeited (in usd per share) 0 0
Ending Balance (in usd per share) $ 20.59 $ 26.70
Value    
Beginning Balance $ 4.8 $ 0.0
Granted 1.6 4.8
Vested 0.0 0.0
Forfeited 0.0 0.0
Ending Balance $ 6.4 $ 4.8
LTIP market-based vesting units | Minimum    
Value    
Vesting percentage 0.00%  
LTIP market-based vesting units | Maximum    
Value    
Vesting percentage 200.00%