Commitments And Contingencies Capital Commitments (Tables)

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block]

The Company's capital commitments as of June 30, 2018 by year of expected payment were as follows (in thousands):

	Remainder of 2018		2019		Total
Ocean Services	$	167	$	—	$	167
Inland Services	3,810		2,265		6,075
	$	3,977	$	2,265	$	6,242