Inventory (Tables)

3 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Inventory [Table Text Block]

(in thousands)		Mar 31, 2015		Dec 31, 2014
Inventory:
	Remotely operated vehicle parts and components	$	194,661	$	207,885
	Other inventory, primarily raw materials	185,175		167,703
	Total	$	379,836	$	375,588