Share-Based Compensation - Summary of Grant Date Fair Value of Awards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options	$ 6,102	$ 3,685	$ 817
Restricted stock	3,147	2,985	5,024
Total	$ 9,249	$ 6,670	$ 5,841