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INTEREST, NET (Tables)
 12 Months Ended
Dec. 31, 2019
Other Income and Expenses [Abstract]  
Schedule of interest expense, net
Interest expense, net comprised the following for the years ended December 31:
(in thousands)
2019
 
2018
 
2017
 
 
 
 
 
 
Interest income - Partnership
$
3

 
$
132

 
$
3

Interest expense - Partnership
(3,717
)
 
(3,075
)
 
(2,644
)
Interest expense - Funds
(2,247
)
 
(2,247
)
 
(2,321
)
Capitalized interest - Partnership
164

 
295

 
491

Interest expense, net
$
(5,797
)
 
$
(4,895
)
 
$
(4,471
)