Share-Based Compensation (Summary of Income Tax Benefit Related to Share-Based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options	$ 417	$ 1,160	$ 1,130	$ 2,236
Restricted stock	(33)	194	(1)	216
Total	$ 384	$ 1,354	$ 1,129	$ 2,452