XML 76 R56.htm IDEA: XBRL DOCUMENT v3.21.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts Receivable (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Change in estimate of uncollectable revenues $ 49,329 $ 3,463 $ 4,817
Accounts Receivable      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Change in estimate of uncollectable revenues 48,240 $ 3,463  
Straight line rent receivables $ 5,603