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Schedule IV - Mortgage Loans on Real Estate Assets
 12 Months Ended
Dec. 31, 2019
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Abstract]  
Schedule IV - Mortgage Loans on Real Estate Assets
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE ASSETS
The following shows changes in the carrying amounts of mortgage loans on real estate assets during the years ended December 31, 2019, 2018 and 2017 (in thousands):
 
Year Ended December 31,
 
2019
 
2018
 
2017
Balance as of the beginning of the year
$
2,070

 
$
2,773

 
$
12,737

Collection of mortgage loans
(738
)
 
(703
)
 
(9,964
)
Balance as of the end of the year
$
1,332

 
$
2,070

 
$
2,773