XML 78 R64.htm IDEA: XBRL DOCUMENT v3.10.0.1
Dividends Declared and Paid - Additional Information (Details) - $ / shares
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Equity [Abstract]    
Total regular dividends declared (in dollars per shares) $ 1.32  
Regular Long-term incentive plan (LTIP) units, distributions per unit (in dollars per share) $ 1.32  
Percentage of distribution considered taxable income 86.70% 94.70%
Percentage of 1250 unrecaptured gain 13.30%  
Percentage of distribution considered capital gain   5.30%