Lease Obligations Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2018

Leases [Abstract]

Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

As of December 31, 2018, future minimum payments under our current lease agreements are as follows:

Year(s)	2019	2020	2021	2022	2023	Thereafter	Total
(in thousands)
Expected payments	$2,349	$1,998	$1,761	$1,689	$1,642	$5,398	$14,837