Share-Based Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2014 Stock Options [Member]	Mar. 31, 2014 Stock Options [Member]	Jun. 30, 2013 Stock Options [Member]	Mar. 31, 2013 Stock Options [Member]	Jun. 30, 2014 Restricted Stock [Member]	Mar. 31, 2014 Restricted Stock [Member]	Jun. 30, 2013 Restricted Stock [Member]	Mar. 31, 2013 Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, grants during period (in shares)		173,722	0	80,242	0
Stock options, weighted-average fair value, grants during the period (dollars per share)		$ 7.16		$ 4.89
Restricted stock, grants during period (in shares)						85,907	0	90,387	0
Restricted stock, weighted-average fair value, grants during the period (dollars per share)						$ 14.40		$ 9.99
Total compensation cost not yet recognized	$ 1.9
Total compensation cost not yet recognized, period for recognition	2 years 4 months 24 days