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Common Shares (Tables) | 12 Months Ended
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Dec. 31, 2018
Two thousand fourteen ATM program [Domain] |
Activity Under At-The-Market Share Offering Program | The following table presents activity under the 2017 ATM program for the year ended December 31, 2017:
(in thousands, except per share amounts) | Year Ended December 31, 2017
Total net consideration | $ | 2,513.6 |
Common shares sold | 28.1 |
Average price per share | $ | 90.44 |

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