Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

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

Summary of share-based awards granted

Performance-based phantom shares	24,450
Service-based phantom shares	41,750
Stock appreciation rights	2,800
Total	69,000

Performance-based restricted stock units	195,650
Time-based restricted stock	149,700
Options	134,250
Total	479,600

Summary of valuation assumptions

Volatility	69.9		%
Risk-free interest rate	2.39		%
Dividend yield	0.00		%
Grant date stock price	$	7.35
Performance period	3 years

Volatility	48.80		%
Risk-free interest rate	2.56		%
Dividend yield	0.00		%
Grant date stock price	$	7.35
Expected term	6 years