Share-Based Compensation (Details Textual) (USD $)	9 Months Ended			3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Employee Stock Option [Member]	Sep. 30, 2014 Restricted Stock Units (RSUs) [Member]	Sep. 30, 2014 Selling, General and Administrative Expenses [Member]	Sep. 30, 2013 Selling, General and Administrative Expenses [Member]	Sep. 30, 2014 Selling, General and Administrative Expenses [Member]	Sep. 30, 2013 Selling, General and Administrative Expenses [Member]	Mar. 26, 2014 Executive Officers And Certain Key Employees [Member] Employee Stock Option [Member]	Mar. 26, 2014 Executive Officers And Certain Key Employees [Member] Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expenses	$ 3,530,000			$ 487,000	$ 0	$ 3,500,000	$ 0
Number of shares authorized								13,035,000	2,500,000
Vesting period		4 years
Expiration period		10 years
Unrecognized incentive expense		500,000
Unrecognized incentive expense, period of recognition		3 months
Unrecognized compensation costs related to restricted stock awards			$ 2,500,000
Number of exercisable restricted stock awards			0