Earnings Per Share - Additional Information (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Anti-dilutive shares excluded from computation of earnings per share	65,407	65,633	206,986
Accrued contingent consideration to be paid to shareholders	$ 1.0	$ 1.0
Common stock assigned value of per share, contingent consideration	$ 15.00	$ 15.00
Number of dilutive shares related to contingent consideration	64,000	64,000