Stock Based Compensation Stock Based Compensation (Notes)

6 Months Ended

Jun. 30, 2017

Stock Based Compensation [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

Stock-Based Compensation

The Company recorded stock-based compensation expense of $0.4 million and a benefit of $0.7 million for the first six months of 2017 and 2016, respectively. A portion of stock-based compensation is related to the change in the market value of the Company's common stock.

A summary of stock-based awards issued during the six months ended June 30, 2017 follows:

Stock Performance Rights ("SPRs")

The Company issued 35,351 SPRs to key employees with an exercise price of $22.75 per share that cliff vest on December 31, 2019 and have a termination date of December 31, 2024.

Restricted Stock Units ("RSUs")

The Company issued 21,614 RSUs to key employees with a vesting date of December 31, 2019. Each RSU is exchangeable for one share of the Company's common stock at the end of the vesting period.

Restricted Stock Awards ("RSAs")

The Company issued 30,304 RSAs to members of the Company's Board of Directors with a vesting date of May 16, 2018 and issued 3,000 RSAs to key employees with a vesting date of December 31, 2019. Each RSA is exchangeable for one share of the Company's common stock at the end of the vesting period.

Market Stock Units ("MSUs")

The Company issued 39,238 MSUs to key employees that cliff vest on December 31, 2019. MSU's are exchangeable for the Company's common stock at the end of the vesting period. The number of shares of common stock that will be issued upon vesting, ranging from zero to 58,857, will be determined based upon the trailing sixty-day weighted average closing price of the Company's common stock on December 31, 2019.