Stock Based Compensation	3 Months Ended
Stock Based Compensation	Mar. 31, 2017
Stock Based Compensation [Abstract]
Stock Based Compensation	6. Stock Based Compensation During the quarter ended March 31, 2017, the Company issued 633,120 restricted stock units at a weighted average grant-date fair value of $16.67 per share. As of March 31, 2017, the Company had 1,770,770 restricted stock units outstanding at a weighted average grant-date fair value of $13.03 per share. As of March 31, 2017, $15.0 million of total restricted stock unit compensation expense related to unvested awards had not been recognized and is expected to be recognized over a weighted average period of approximately 2.13 years. During the quarter ended March 31, 2017, 148,587 shares of common stock subject to vesting requirements were issued. These shares were part of the closing consideration and post-closing contingent consideration for the 2014 acquisition of Technolab. As of March 31, 2017, the Company had 348,745 shares of common stock subject to vesting requirements outstanding at a weighted average grant-date fair value of $9.21 per share. As of March 31, 2017, $2.2 million of compensation expense related to common stock subject to vesting requirements had not been recognized and is expected to be recognized over a weighted average period of approximately 1.4 years.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.