Equity - Earnings Per Share (EPS) (Details) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Common stock (in shares)	25,948,189	21,677,981	20,737,903
Common stock equivalents-stock options, grants (in shares)	27,715	40,409	46,839
Diluted shares outstanding (in shares)	25,975,904	21,718,390	20,784,742