Stock-Based Compensation (Details 4) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Share-based Compensation [Abstract]
Options Outstanding, Expected to Vest, Shares | shares	626,523
Options Outstanding, Expected to Vest, Weighted-Average Exercise Price | $ / shares	$ 25.63
Options Outstanding, Expected to Vest, Aggregate Intrinsic Value | $	$ 6,400
Options Outstanding, Expected to Vest, Weighted-Average Remaining Term	5 years 9 months 22 days
Options Outstanding, Exercisable, Shares | shares	413,733
Options Outstanding, Exercisable, Weighted-Average Exercise Price | $ / shares	$ 20.86
Options Outstanding, Exercisable, Aggregate Intrinsic Value | $	$ 6,063
Options Outstanding, Exercisable, Weighted-Average Remaining Term	4 years 7 months 10 days