Equity Compensation (Schedule of Equity Compensation Stock Options Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Equity Compensation [Abstract]
Number of options outstanding at beginning of period	192
Number of options granted	0	0
Number of options exercised	(5)
Number of options forfeited	0
Number of options expired	0
Number of options outstanding at end of period	187
Number of options exercisable at end of period	177
Weighted average exercise price outstanding at beginning of period	$ 18.29
Weighted average exercise price options granted	0.00
Weighted average exercise price options exercised	18.84
Weighted average exercise price options forfeited	0.00
Weighted average exercise price options expired	0.00
Weighted average exercise price outstanding at end of period	18.27
Weighted average exercise price exercisable at end of period	$ 18.04
Weighted average remaining contractual term outstanding at end of period, years	2 years 7 months 29 days
Weighted average remaining contractual term exercisable at end of period, years	2 years 5 months 24 days
Aggregate intrinsic value outstanding at end of period	$ 1,661
Aggregate intrinsic value exercisable at end of period	$ 1,611