XML 71 R61.htm IDEA: XBRL DOCUMENT v3.22.2
Stock Based Compensation Stock Based Compensation (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Restricted stock awards        
Stock-based compensation        
Total unrecognized compensation cost $ 6.0   $ 6.0  
Remaining weighted average vesting period for recognition of unrecognized compensation cost     1 year 9 months 25 days  
Recognized compensation expense 1.3 $ 1.2 $ 5.5 $ 4.6
Performance-based restricted stock awards        
Stock-based compensation        
Total unrecognized compensation cost 20.1   $ 20.1  
Remaining weighted average vesting period for recognition of unrecognized compensation cost     2 years 21 days  
Recognized compensation expense $ 3.0 $ 2.4 $ 6.4 $ 4.8
Period of total shareholder return upon which the percentage of shares vesting at the end of the measurement period will be based     3 years  
Period of return of the MSCI US REIT index against which total shareholder return measured     3 years  
Percentage of revenues from triple-net leases (at least)     75.00%  
End Of Measurement Period Vesting | Performance-based restricted stock awards        
Stock-based compensation        
Vesting period     3 years