Share-Based Compensation Share-Based Compensation (CEO & CFO Inducement Stock Award) (Details) - Stock-Options [Member] - $ / shares				12 Months Ended
	Jan. 28, 2014	Jan. 06, 2014	Aug. 08, 2013	Dec. 31, 2016	Oct. 04, 2015
Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance					150,000
Range 1 [Member] | Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target			$ 50.00	$ 50.00
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				50,000
Range 1 [Member] | Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target				$ 87.50
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				25,000
Range 2 [Member] | Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target		$ 60.00		$ 60.00
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				100,000
Range 2 [Member] | Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target				$ 100.00
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				50,000
Range 3 [Member] | Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target	$ 70.00			$ 70.00
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				150,000
Range 3 [Member] | Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target				$ 112.50
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				75,000
Range 4 [Member] | Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target				$ 80.00
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				200,000
Range 4 [Member] | Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Stock Price Target				$ 125.00
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance				100,000