XML 47 R42.htm IDEA: XBRL DOCUMENT v3.19.3
Debt - Senior Unsecured Credit Facility (Details)
 3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Jul. 25, 2019
USD ($)
Jul. 24, 2019
USD ($)
Dec. 31, 2018
USD ($)
Line of Credit Facility [Line Items]              
Percent of unused portion line of credit facility triggering lower commitment fee (as a percent)     50.00%        
Senior unsecured credit facility $ 75,000,000   $ 75,000,000       $ 0
Unsecured credit facility              
Line of Credit Facility [Line Items]              
Interest and unused credit facility fees $ 1,100,000 $ 300,000 $ 2,800,000 $ 1,000,000.0      
Minimum              
Line of Credit Facility [Line Items]              
Line of credit facility, unused capacity, commitment fee (as a percent)     0.20%        
Maximum              
Line of Credit Facility [Line Items]              
Line of credit facility, unused capacity, commitment fee (as a percent)     0.30%        
Line Of Credit Facility Covenant              
Line of Credit Facility [Line Items]              
Maximum leverage ratio (as a percent) 0.60   0.60        
Minimum fixed charge coverage ratio     1.50        
Secured recourse indebtedness     45.00%        
Unencumbered leverage ratio 60.00%   60.00%        
Unencumbered implied debt service coverage ratio     1.2        
Line Of Credit Facility Covenant Actual Results              
Line of Credit Facility [Line Items]              
Maximum leverage ratio (as a percent) 0.314   0.314        
Minimum fixed charge coverage ratio     3.74        
Secured recourse indebtedness     18.70%        
Unencumbered leverage ratio 26.10%   26.10%        
Unencumbered implied debt service coverage ratio     2.79        
LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.45%        
Less than 30% | Maximum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.30        
Less than 30% | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.40%        
Greater than or equal to 30% but less than 35% | Minimum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.30        
Greater than or equal to 30% but less than 35% | Maximum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.35        
Greater than or equal to 30% but less than 35% | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.45%        
Greater than or equal to 35% but less than 40% | Minimum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.35        
Greater than or equal to 35% but less than 40% | Maximum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.40        
Greater than or equal to 35% but less than 40% | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.50%        
Greater than or equal to 40% but less than 45% | Minimum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.40        
Greater than or equal to 40% but less than 45% | Maximum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.45        
Greater than or equal to 40% but less than 45% | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.55%        
Greater than or equal to 45% but less than 50% | Minimum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.45        
Greater than or equal to 45% but less than 50% | Maximum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.50        
Greater than or equal to 45% but less than 50% | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.70%        
Greater than or equal to 50% but less than 55% | Minimum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.50        
Greater than or equal to 50% but less than 55% | Maximum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.55        
Greater than or equal to 50% but less than 55% | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.90%        
Greater than or equal to 55% | Minimum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Ratio of net indebtedness to EBITDA     0.55        
Greater than or equal to 55% | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     2.05%        
Senior Unsecured Credit Facility | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Maximum borrowing capacity         $ 400,000,000 $ 300,000,000  
Accordion feature, higher borrowing capacity           $ 600,000,000  
Senior unsecured credit facility $ 75,000,000.0   $ 75,000,000.0       $ 0
Senior Unsecured Credit Facility | LIBOR | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.45%        
Senior Unsecured Credit Facility | LIBOR | Minimum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     1.50%        
Senior Unsecured Credit Facility | LIBOR | Maximum | Unsecured credit facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate     2.25%