Noncontrolling Interests	12 Months Ended
Dec. 31, 2019
Noncontrolling Interests [Abstract]
Noncontrolling Interests	7.Noncontrolling Interests At December 31, 2019, the noncontrolling interests represent (i) third-party equity interests in subsidiaries owning 18 operating self-storage facilities and seven self-storage facilities that are under construction and (ii) 231,978 partnership units held by third-parties in a subsidiary that are convertible on a one-for-one basis (subject to certain limitations) into common shares of the Company at the option of the unitholder (collectively, the “Noncontrolling Interests”). At December 31, 2019, the Noncontrolling Interests cannot require us to redeem their interests, other than pursuant to a liquidation of the subsidiary. During 2019, 2018 and 2017, we allocated a total of $5.1 million, $6.2 million and $6.2 million, respectively, of income to these interests; and we paid $6.7 million, $7.0 million and $7.4 million, respectively, in distributions to these interests. During 2019, we acquired noncontrolling interests for an aggregate of $35.0 million (none for 2018) in cash, of which $11.1 million was allocated to Noncontrolling Interests, with the remainder allocated to Paid-in Capital. During 2017, we acquired Noncontrolling Interests for $14.4 million in cash, of which $7.7 million was allocated to Paid-in capital and $6.7 million as a reduction to Noncontrolling Interests. During 2019, 2018 and 2017, Noncontrolling Interests contributed $4.1 million, $1.7 million and $2.5 million, respectively, to our subsidiaries.

Noncontrolling Interests

12 Months Ended

Dec. 31, 2019

7.Noncontrolling Interests

At December 31, 2019, the noncontrolling interests represent (i) third-party equity interests in subsidiaries owning 18 operating self-storage facilities and seven self-storage facilities that are under construction and (ii) 231,978 partnership units held by third-parties in a subsidiary that are convertible on a one-for-one basis (subject to certain limitations) into common shares of the Company at the option of the unitholder (collectively, the “Noncontrolling Interests”). At December 31, 2019, the Noncontrolling Interests cannot require us to redeem their interests, other than pursuant to a liquidation of the subsidiary.

During 2019, 2018 and 2017, we allocated a total of $5.1 million, $6.2 million and $6.2 million, respectively, of income to these interests; and we paid $6.7 million, $7.0 million and $7.4 million, respectively, in distributions to these interests.

During 2019, we acquired noncontrolling interests for an aggregate of $35.0 million (none for 2018) in cash, of which $11.1 million was allocated to Noncontrolling Interests, with the remainder allocated to Paid-in Capital. During 2017, we acquired Noncontrolling Interests for $14.4 million in cash, of which $7.7 million was allocated to Paid-in capital and $6.7 million as a reduction to Noncontrolling Interests. During 2019, 2018 and 2017, Noncontrolling Interests contributed $4.1 million, $1.7 million and $2.5 million, respectively, to our subsidiaries.