Earnings per Share (Narrative) (Details) - $ / shares	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted average shares outstanding-diluted	36,794,215	45,353,170	37,133,584
Antidilutive shares excluded from the computation of diluted net earning per share		$ 0	$ 0
Class O Units [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted average shares outstanding-diluted				1,113,169
Antidilutive shares excluded from the computation of diluted net earning per share, amount per share				25.00