Noncontrolling Interests - Operating Partnership (Tables)

12 Months Ended

Dec. 31, 2018

Noncontrolling Interests - Operating Partnership

Schedule of ownership interests in our Operating Partnership

	December 31, 2018			December 31, 2017
	Number of Units	Percentage of Total		Number of Units	Percentage of Total
CoreSite Realty Corporation	36,256,032	75.8	%	33,826,264	71.0	%
Noncontrolling interests	11,575,268	24.2		13,836,336	29.0
Total	47,831,300	100.0	%	47,662,600	100.0	%