Equity - Earnings Per Share (EPS) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Weighted average number of shares outstanding:
Common stock (in shares)	25,950,851	20,855,112	25,931,940	20,841,627
Common stock equivalents (in shares)	19,748	22,837	29,198	44,003
Diluted shares outstanding (in shares)	25,970,599	20,877,949	25,961,138	20,885,630