Related Party (Tables)

3 Months Ended

Mar. 31, 2019

Related Party [Abstract]

Schedule of Related Party Transactions [Table Text Block]

The payments with related parties for the three months ended March 31, 2019 and 2018 (in thousands) were as follows:

	Three months ended March 31,
	2019		2018
Payments for parts and services	$	80	$	136
Terminal lease payments	—		247
	$	80	$	383