Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Disclosures (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Supplemental Cash Flow Elements [Abstract]    
Reduction of debt through sale of certain real estate properties $ 3,615 $ 0
Accrued interest capitalized to principal 1,799 0
Accrued performance share dividend rights 115 0
Accrued deferred financing costs $ 304 $ 0