Employee Benefit Plans (Narrative) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Proceeds from exercise of stock options	$ 600,000	$ 2,900,000
Total intrinsic value of stock options exercised	300,000	600,000
Stock-based compensation expense related to restricted shares	800,000	600,000
Total expense associated with the retirement benefit plan	600,000	600,000
Contributions made by company	300,000	500,000
Stock Appreciation Rights (SARs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Incentive stock options and SARs exercisable period	10 years
Employee Stock Option [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Incentive stock options and SARs exercisable period	10 years
Stock options awarded	411,601
Stock-based compensation expense	100,000	200,000
Unrecognized stock-based compensation expense	500,000
Weighted-average period, unrecognized expense expected to be recognized	1 year 6 months
Restricted Stock [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock options awarded	230,109
Unrecognized stock-based compensation expense	$ 3,200,000
Weighted-average period, unrecognized expense expected to be recognized	3 years 7 months 6 days
Maximum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Common stock issued upon the exercise of stock options, SARs and stock awards	750,000