Noncontrolling Interest	3 Months Ended
Noncontrolling Interest	Mar. 31, 2015
Noncontrolling Interest [Abstract]
Noncontrolling Interest	10. Noncontrolling Interest Concurrently with the completion of the IPO, QTS consummated a series of transactions pursuant to which QTS became the sole general partner and majority owner of QualityTech, LP, which then became its operating partnership. The previous owners of QualityTech, LP retained 21.2% ownership of the Operating Partnership. Commencing at any time beginning November 1, 2014, at the election of the holders of the noncontrolling interest, the Class A units are redeemable for cash or, at the election of the Company, common stock of the Company on a one-for-one basis. During the first quarter of 2015, approximately 230,000 Class A units were redeemed for the Company’s Class A common stock. As a result, the noncontrolling ownership interest of QualityTech, LP, after taking into account the Class A units redeemed, the grant of equity awards and the issuance of 5,000,000 shares of common stock in March 2015, was 17.3% at March 31, 2015.

The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.

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