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Supplementary Income Statement Information
 12 Months Ended
Dec. 31, 2020
Supplementary Income Statement Information [Abstract]  
Supplementary Income Statement Information Supplementary Income Statement Information
The following amounts are included in property operating expenses for the years ended December 31, 2020, 2019 and 2018 (in thousands):
202020192018
Advertising and promotion$20,435 $26,022 $27,066 
Common area maintenance56,226 70,472 73,367 
Real estate taxes32,762 33,430 32,836 
Other operating expenses27,712 27,810 27,188 
$137,135 $157,734 $160,457