Share-Based Compensation - Schedule of Share Based Compensation Stock Options Activity (Parenthetical) (Details) - Stock Options - Chief Executive Officer - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Date of confirmation agreement	Apr. 01, 2013
Number of option grant claim for common stock		0	0	0	0
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock to purchase for option grant	100,000