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Noncontrolling Interests (Tables)
 3 Months Ended
Mar. 31, 2018
Noncontrolling Interest [Abstract]  
Redeemable noncontrolling interest
The following summarizes the activity for noncontrolling interests for the three months ended March 31, 2018 and the year ended December 31, 2017:
 
Three Months Ended March 31, 2018
 
Year Ended December 31, 2017
Beginning balance
$
76

 
$
84

Issuance of limited partnership units
1,185

 
—

Distributions to noncontrolling interests
(11
)
 
(11
)
Net income allocation
1

 
3

Ending balance
$
1,251

 
$
76