Stock-Based Compensation Schedule of Share-based Compensation, Phantom Stock Units Award Activity (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Share-based Compensation, Phantom Stock Units Award Activity [Line Items]

Schedule of Share-based Compensation, Phantom Stock Units Award Activity [Table Text Block]

Phantom stock unit activity as of December 31, 2018 is as follows:

	Number of Phantom Stock Units
Outstanding on December 31, 2017	—
Granted	111,673
Vested	—
Forfeited	—
Outstanding on December 31, 2018	111,673