Stock-Based Employee Compensation (Expense Recognized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Employee stock-base compensation expense	$ 36,073	$ 26,116	$ 21,178
Marketing, selling and administrative expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Employee stock-base compensation expense	$ 36,073	$ 26,116	$ 21,178