XML 71 R51.htm IDEA: XBRL DOCUMENT v3.8.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reclassifications (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cash paid upon vesting of restricted shares $ (2,046) $ (1,638) $ (1,567)
Accounting Standards Update 2016-09 | Reclassifications      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cash paid upon vesting of restricted shares   1,600 1,600
CubeSmart, L.P. and Subsidiaries      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cash paid upon vesting of restricted shares $ (2,046) $ (1,638) $ (1,567)