Stockholders' Equity and Equity Compensation - Summary of Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Shares
Outstanding at January 1, 2015 | shares	503,134
Granted | shares	0
Exercised | shares	(109,344)
Canceled/Expired | shares	(5,546)
Outstanding at June 30, 2015 | shares	388,244
Exercisable at June 30, 2015 | shares	384,790
Weighted Average Exercise Price (in Dollars per share)
Outstanding at January 1, 2015 (in Dollars per share)	$ 18.18
Granted (in Dollars per share)	0.00
Exercised (in Dollars per share)	13.40
Canceled/Expired (in Dollars per share)	24.21
Outstanding at June 30, 2015 (in Dollars per share)	19.45
Exercisable at June 30, 2015 (in Dollars per share)	$ 19.46