Inventory (Tables)

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Inventory [Table Text Block]

(in thousands)		Sep 30, 2015		Dec 31, 2014
Inventory:
	Remotely operated vehicle parts and components	$	180,948	$	207,885
	Other inventory, primarily raw materials	192,286		167,703
	Total	$	373,234	$	375,588