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Debt - Future Scheduled Principal Payments of Debt Obligations (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Debt Disclosure [Abstract]    
2016 $ 9,868  
2017 4,302  
2018 5,374  
2019 7,340  
2020 75,479  
Thereafter 505,509  
Total $ 607,872 $ 550,221