Summary of Significant Accounting Policies (Details 4) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
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Sep. 30, 2013
Dec. 31, 2013
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Dec. 31, 2012
Predecessor
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Dec. 31, 2011
Predecessor
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Dividends and Distributions          
Cash dividend declared to common shareholders (in dollars per share) $ 0.225 $ 0.18 $ 0.225    
Cash dividend declared to common shareholders, which is equivalent to a full quarterly dividend (in dollars per share)   $ 0.225      
Impairment of Intangible and Long-Lived Assets          
Impairment of intangible and long-lived assets       $ 0.9 $ 1.4
Number of properties impaired       3 1
Rental Revenue          
Rental revenue due in excess of amounts currently due from tenants 2.0   2.0 1.3 1.6
Escrow Reserves          
Escrow reserves $ 1.6   $ 1.6 $ 1.1  
Derivatives          
Number of derivatives been designated as hedges 0   0