Earnings Per Share - Reconciliation of the average shares outstanding used to compute basic and diluted earnings per share (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding (in shares)	35,367,340	35,020,428
Effect of dilutive securities (in shares)	0	0
Diluted weighted average common shares outstanding (in shares)	35,367,340	35,020,428