Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Summary of financial data by reportable segment

Certain financial data by reportable segment are summarized as follows (in thousands): 

	Three Months Ended March 31,
	2018			2017
Net revenues —
Well Intervention	$	129,569		$	74,621
Robotics	27,169			21,968
Production Facilities	16,321			16,375
Intercompany elimination	(8,797		)	(8,436		)
Total	$	164,262		$	104,528
Income (loss) from operations —
Well Intervention	$	13,877		$	1,418
Robotics	(14,317		)	(16,306		)
Production Facilities	7,359			6,924
Corporate and other	(8,256		)	(9,962		)
Intercompany elimination	221			221
Total	$	(1,116	)	$	(17,705	)

Summary of intercompany segment revenues

Intercompany segment revenues are as follows (in thousands): 

	Three Months Ended March 31,
	2018		2017
Well Intervention	$	1,952	$	1,373
Robotics	6,845		7,063
Total	$	8,797	$	8,436

Schedule of total assets by reportable segment

The following table reflects total assets by reportable segment (in thousands): 

	March 31, 2018		December 31, 2017
Well Intervention	$	1,834,166	$	1,830,733
Robotics	155,297		179,853
Production Facilities	134,892		138,292
Corporate and other	214,793		213,959
Total	$	2,339,148	$	2,362,837