Annual report pursuant to Section 13 and 15(d)

EQUITY-BASED AWARDS - Narrative (Details)

v3.10.0.1
EQUITY-BASED AWARDS - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended 48 Months Ended 72 Months Ended
Dec. 31, 2013
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2018
2015 Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Percent of shares outstanding issuable   5.00%        
LTIP units [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total compensation cost recognized   $ 3.6 $ 3.5 $ 2.5    
Unvested compensation cost not yet recognized   $ 3.7     $ 3.7 $ 3.7
Recognition period on unvested shares   3 years 5 months        
LTIP units [Member] | 2013 Long-Term Incentive Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Maximum number of shares authorized under under plan (in shares)   2,500,000     2,500,000 2,500,000
Total shares issued (in shares)           2,474,710
LTIP units [Member] | LP Agreement [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total shares issued (in shares)           313,759
LTIP units [Member] | 2015 Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total shares issued (in shares)           565,672
Time-Based LTIP Unit [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Aggregate fair value of LTIP units vested during period   $ 2.1 $ 2.6 $ 1.2    
Granted (in shares)   100,176 128,051 177,546    
Time-Based LTIP Unit [Member] | Minimum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)   1 year        
Time-Based LTIP Unit [Member] | Maximum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)   3 years        
Restricted Common Shares [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total compensation cost recognized   $ 0.3 $ 0.2 $ 0.1    
Restricted Common Shares [Member] | 2015 Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)         3 years  
Unvested compensation cost not yet recognized   $ 0.3     $ 0.3 $ 0.3
Recognition period on unvested shares   2 years        
Restricted common shares granted (in shares)   12,311 16,525 8,090 54,136  
Aggregate fair value and total compensation cost of vested shares   $ 0.2 $ 0.1 $ 0.1    
Participating Regional Operator [Member] | Management [Member] | LTIP units [Member] | 2013 Long-Term Incentive Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Aggregate fair value of LTIP units vested during period     $ 0.9 $ 0.8    
Granted (in shares) 1,683,560          
Acquisition Consultants [Member] | LTIP units [Member] | LP Agreement [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares issued for services (in shares)   174 776 2,758    
Shares issued for services (fair value)   $ 0.1 $ 0.1 $ 0.1