Subsequent Events
12 Months Ended
Dec. 31, 2015
Subsequent Events [Abstract]  
Subsequent Events
Subsequent Events
In January and February 2016, the Compensation Committee of the Company's Board of Directors (the "Compensation Committee") granted 763,470 restricted stock units with a weighted-average grant date fair value of $6.44, which vest quarterly over four years. Additionally, the Compensation Committee granted stock options to purchase 100,706 shares of the Company's common stock at a weighted-average exercise price of $6.03 per share. The stock options vest over an approximate period of four years.