Dividends Declared and Paid - Additional Information (Details) (USD $)
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1 Months Ended | 3 Months Ended | 6 Months Ended | |||||||
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Jun. 30, 2013
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May 31, 2013
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Apr. 30, 2013
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Mar. 31, 2013
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Feb. 28, 2013
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Jan. 31, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Jun. 30, 2013
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Jun. 30, 2012
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Equity [Abstract] | ||||||||||
Common shares, dividend declared per share | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.21 | $ 0.21 | $ 0.42 | $ 0.375 |
Long-term incentive plan (LTIP) units, distributions per unit | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.21 | $ 0.21 | $ 0.42 | $ 0.375 |