Stockholders' Equity - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 02, 2015	Oct. 27, 2011	Jul. 31, 2008
Class of Stock [Line Items]
Stock repurchase program, authorized amount (in Dollars)				$ 30,000,000	$ 30,000,000
Repurchase of common stock	$ 7,700,000	$ 2,800,000	$ 200,000
Preferred stock par value (in Dollars per share)	$ 0.01	$ 0.01				$ 0.01
Series A Junior Participating Preferred Stock
Class of Stock [Line Items]
Common stock, purchase rights (in shares)						0.01
Preferred stock par value (in Dollars per share)						$ 0.01
Preferred stock, redemption price (in Dollars per share)						$ 72
Preferred stock, shares reserved for future issuance (in Shares)						1,500,000