Annual report pursuant to Section 13 and 15(d)

Equity - Unvested Restricted Common Stock (Details)

v3.19.3.a.u2
Equity - Unvested Restricted Common Stock (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Restricted Incentive    
Shares    
Beginning Balance (in shares) 1,386,756 1,399,593
Granted (in shares) 150,493 454,106
Vested (in shares) (781,218) (370,072)
Forfeited (in shares) (5,789) (96,871)
Ending Balance (in shares) 750,242 1,386,756
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 19.00 $ 18.73
Granted (in usd per share) 23.99 19.72
Vested (in usd per share) 18.91 18.88
Forfeited (in usd per share) 20.62 18.92
Ending Balance (in usd per share) $ 20.08 $ 19.00
Value    
Beginning Balance $ 26.4 $ 26.2
Granted 3.6 9.0
Vested (14.8) (7.0)
Forfeited (0.1) (1.8)
Ending Balance $ 15.1 $ 26.4
Restricted Stock Units    
Shares    
Beginning Balance (in shares) 393,148 255,706
Granted (in shares) 46,586 176,128
Vested (in shares) (1,380) (20,368)
Forfeited (in shares) (2,776) (18,318)
Ending Balance (in shares) 435,578 393,148
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 19.55 $ 18.99
Granted (in usd per share) 25.10 20.24
Vested (in usd per share) 21.68 18.99
Forfeited (in usd per share) 22.23 19.05
Ending Balance (in usd per share) $ 20.12 $ 19.55
Value    
Beginning Balance $ 7.7 $ 4.9
Granted 1.2 3.5
Vested 0.0 (0.4)
Forfeited (0.1) (0.3)
Ending Balance $ 8.8 $ 7.7
Restricted Stock Units | Minimum    
Value    
Award vesting percentage 0.00%  
Restricted Stock Units | Maximum    
Value    
Award vesting percentage 200.00%  
LTIP Time-Based Vesting Units    
Shares    
Beginning Balance (in shares) 0  
Granted (in shares) 209,330  
Vested (in shares) (8,020)  
Forfeited (in shares) 0  
Ending Balance (in shares) 201,310 0
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 0  
Granted (in usd per share) 25.84  
Vested (in usd per share) 25.82  
Forfeited (in usd per share) 0  
Ending Balance (in usd per share) $ 25.84 $ 0
Value    
Beginning Balance $ 0.0  
Granted 5.4  
Vested (0.2)  
Forfeited 0.0  
Ending Balance $ 5.2 $ 0.0
LTIP Market-Based Vesting Units    
Shares    
Beginning Balance (in shares) 0  
Granted (in shares) 180,500  
Vested (in shares) 0  
Forfeited (in shares) 0  
Ending Balance (in shares) 180,500 0
Weighted Average Grant Date Fair Value    
Beginning Balance (in usd per share) $ 0  
Granted (in usd per share) 26.70  
Vested (in usd per share) 0  
Forfeited (in usd per share) 0  
Ending Balance (in usd per share) $ 26.70 $ 0
Value    
Beginning Balance $ 0.0  
Granted 4.8  
Vested 0.0  
Forfeited 0.0  
Ending Balance $ 4.8 $ 0.0
LTIP Market-Based Vesting Units | Minimum    
Value    
Award vesting percentage 0.00%  
LTIP Market-Based Vesting Units | Maximum    
Value    
Award vesting percentage 200.00%