Inventory (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Inventory [Table Text Block]

(in thousands)		Jun 30, 2015		Dec 31, 2014
Inventory:
	Remotely operated vehicle parts and components	$	191,178	$	207,885
	Other inventory, primarily raw materials	185,772		167,703
	Total	$	376,950	$	375,588