Equity Compensation (Schedule of Equity Compensation Stock Options Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Equity Compensation Arrangement by Share-based Payment Award [Abstract]
Number of Options Outstanding at beginning of period	653
Number of Options granted	0	0
Number of Options exercised	(175)
Number of Options forfeited	(3)
Number of Options expired	0
Number of Options Outstanding at end of period	475
Number of Options Exercisable at end of period	394
Weighted Average Exercise Price Outstanding at beginning of period	$ 17.85
Weighted Average Exercise Price Options granted	$ 0.00
Weighted Average Exercise Price Options exercised	$ 17.86
Weighted Average Exercise Price Options forfeited	$ 21.15
Weighted Average Exercise Price Options expired	$ 0.00
Weighted Average Exercise Price Outstanding at end of period	$ 17.83
Weighted Average Exercise Price Exercisable at end of period	$ 17.40
Weighted Average Remaining Contractual Term Outstanding at end of period, Years	3 years 8 months 24 days
Weighted Average Remaining Contractual Term Exercisable at end of period, Years	3 years 2 months 22 days
Aggregate Intrinsic Value Outstanding at end of period	$ 3,647
Aggregate Intrinsic Value Exercisable at end of period	$ 3,198