Equity - Common Stock Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Sep. 08, 2015
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.16	$ 0.14	$ 0.12
Common Class C, Non-Voting [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount					$ 25,000
Repurchase of Class C Common Stock				362,000
Stock Repurchased and Retired During Period, Value				$ 10,518