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Share-Based Compensation	6 Months Ended
Share-Based Compensation	Jun. 30, 2017
Share Based Compensation [Abstract]
Share-Based Compensation	9. Share-Based Compensation Share-based compensation expense from continuing operations totaled $2.4 million and $3.7 million for the three months ended June 30, 2017 and 2016 respectively, and $4.3 million and $5.8 million for the six months ended June 30, 2017 and 2016, respectively. In March 2017, the Company awarded its annual share-based compensation grants, which consisted of 569,594 restricted stock units with a grant date fair value of $16.30 per unit and 304,425 performance share units with a grant date fair value of $16.30 per unit. The restricted stock units are subject to a three year graded vesting period. The performance share units are subject to a 34 month cliff vesting period. Additionally, in May 2017, the Company awarded its non-employee directors 75,745 restricted stock units with a grant date fair value of $12.08 per share and vest in May 2018.