INTERIM CONSOLIDATED FINANCIAL STATEMENTS BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	450,133,000	450,133,000
Common stock, shares issued	51,124,091	50,701,795
Common stock, shares outstanding	51,124,091	50,701,795
Series A Preferred Stock
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 B Preferred Stock
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, liquidation preference	$ 100.00	$ 100.00
Preferred stock, authorized	3,162,500	0
Preferred stock, issued	3,162,500	0
Preferred stock, outstanding	3,162,500	0
7.125% Series A cumulative redeemable perpetual preferred stock: $0.01 par value (liquidation preference $25.00 per share), 4,600,000 shares authorized, 4,280,000 shares issued and outstanding as of September 30, 2018; zero shares authorized, issued and outstanding as of December 31, 2017 | 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
6.50% Series B cumulative convertible perpetual preferred units: $0.01 par value (liquidation preference $100.00 per share), 3,162,500 units authorized, issued and outstanding as of September 30, 2018; zero units authorized, issued and outstanding as of December 31, 2017 | Qualitytech, LP
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, liquidation preference	$ 100.00	$ 100.00
Preferred stock, authorized	3,162,500	0
Preferred stock, issued	3,162,500	0
Preferred stock, outstanding	3,162,500	0
Common units: $0.01 par value, 450,133,000 units authorized, 57,800,709 and 57,245,524 units issued and outstanding as of September 30, 2018 and December 31, 2017, respectively | Qualitytech, LP
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	450,133,000	450,133,000
Common stock, shares issued	57,800,709	57,245,524
Common stock, shares outstanding	57,800,709	57,245,524