INTERIM CONSOLIDATED FINANCIAL STATEMENTS BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Preferred stock, liquidation preference	$ 25.00
Series A 7.125
Preferred stock, par value	0.01	$ 0.01
Preferred stock, liquidation preference	$ 25.00	$ 25.00
Preferred stock, authorized	4,600,000	0
Preferred stock, issued	4,280,000	0
Preferred stock, outstanding	4,280,000	0
Series A 7.125 | Qualitytech, LP
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, liquidation preference	$ 25.00	$ 25.00
Preferred stock, authorized	4,600,000	0
Preferred stock, issued	4,280,000	0
Preferred stock, outstanding	4,280,000	0
Common Units
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	450,133,000	450,133,000
Common stock, shares issued	51,135,691	50,701,795
Common stock, shares outstanding	51,135,691	50,701,795
Common Units | Qualitytech, LP
Common stock, shares issued	57,810,023	57,245,524
Common stock, shares outstanding	57,810,023	57,245,524