Share-Based Payment Arrangements (Summary of the Status of Stock Options) (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) $ / shares shares
Share-Based Payment Arrangements [Abstract]
Stock Options, Outstanding at January 1, 2015	1,062,134
Stock options, granted
Stock Options, Exercised	(86,827)
Stock Options, Forfeited or Expired	(47,860)
Stock Options, Outstanding at September 30, 2015	927,447
Stock Options, Exercisable at September 30, 2015	875,661
Weighted Average Exercise Price, Outstanding at January 1, 2015 | $ / shares	$ 9.51
Weighted Average Exercise Price, Exercised | $ / shares	6.93
Weighted Average Exercise Price, Forfeited or Expired | $ / shares	11.26
Weighted Average Exercise Price, Outstanding at September 30, 2015 | $ / shares	9.66
Weighted Average Exercise Price, Exercisable at September 30, 2015 | $ / shares	$ 9.84
Average Remaining Contractual Term, Outstanding at September 30, 2015	2 years 10 months 24 days
Average Remaining Contractual Term, Exercisable at September 30, 2015	2 years 10 months 24 days
Aggregate Intrinsic Value, Outstanding at September 30, 2015 | $	$ 2,002
Aggregate Intrinsic Value, Exercisable at September 30, 2015 | $	$ 1,749