Share-Based Compensation (Allocated Share-Based Compensation) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stock Options [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total, pre-tax	$ 2,593	$ 2,266	$ 6,481	$ 6,742
Tax effect of share-based compensation	(933)	(838)	(2,333)	(2,495)
Total, net of tax	1,660	1,428	4,148	4,247
Stock Options [Member] | Cost of goods sold [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total, pre-tax	259	226	648	674
Stock Options [Member] | Selling, general and administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total, pre-tax	2,334	2,040	5,833	6,068
Restricted Stock Units (RSUs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total, pre-tax	27	24	78	82
Tax effect of share-based compensation	(10)	(9)	(28)	(30)
Total, net of tax	17	15	50	52
Restricted Stock Units (RSUs) [Member] | Cost of goods sold [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total, pre-tax	0	0	0	0
Restricted Stock Units (RSUs) [Member] | Selling, general and administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total, pre-tax	$ 27	$ 24	$ 78	$ 82