Supplemental Cash Flow Information and Non-Cash Activity (Tables)

9 Months Ended

Sep. 30, 2016

Supplemental Cash Flow Elements [Abstract]

Summary of Non-cash Items from Investing and Financing Activities

The following table is a summary of cash paid for Interest and Income taxes and non-cash items from investing and financing activities (in thousands):

	Nine Months Ended September 30,
	2016			2015
Cash paid during the period for:
Interest	$	8,819		$	8,036
Income taxes	2,579			7,614
Non-cash items from investing and financing activities:
Purchases of computer equipment financed through capital leases	—			1,178
Investment in multi-client data library financed through accounts payable	—			13,617
Bond exchange	10,740		(a)	—
Transfer of inventory to property, plant, equipment and seismic rental equipment	—			15,936		(b)

^(a)  This represents the non cash portion of the bond exchange.

^(b)  This transfer of inventory to property, plant, equipment and seismic rental equipment relates to ocean bottom seismic equipment manufactured to be deployed by the Company’s Ocean Bottom Services segment.