Stock-Based Compensation and Employee Benefit Plans (401(k) Plan) (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employer related match expense	$ 1,000,000	$ 300,000	$ 0