Consolidated Statements of Equity (Parenthetical) - shares |
9 Months Ended | |||
|---|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2014 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Balance (in units/ shares) | 94,533,670 | 87,711,731 | 93,255,284 | 87,394,512 |
| Conversion of common units to common shares (in units/ shares) | 160,160 | 117,149 | ||
| Exercise of share options (in units/shares) | 76,474 | 57,888 | ||
| Share-based compensation issuance, net of redemptions (in units/shares) | 151,511 | 142,182 | ||
| Common Shares | ||||
| Issuance of common units resulting from common shares issued under at-the-market program (in units) | 890,241 | |||
| Preferred Shares | ||||
| Redemption of preferred shares (in units/shares) | 2,000,000 | |||
| X | ||||||||||
- Definition Stock Issued During Period, Shares, New Issues for Other Program No definition available.
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| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of stock bought back by the entity at the exercise price or redemption price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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- Details
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