Operating Segment Information (Tables)

3 Months Ended

Mar. 31, 2012

Operating Segment Information [Abstract]

Operating Income (Loss) by Operating Segment

	North Sea		Southeast Asia		Americas			Other			Total
	(In thousands)
Quarter Ended March 31, 2012
Revenue	$	37,663	$	14,225	$	35,547		$	—		$	87,435
Direct operating expenses		20,020		3,803		24,986			—			48,809
Drydock expense		3,551		2,290		355			—			6,196
General and administrative		3,667		773		2,601			5,075			12,116
Depreciation expense		4,761		2,510		7,178			580			15,029
Gain on sale of assets		—		—		(1,149	)		—			(1,149	)
Operating income (loss)	$	5,664	$	4,849	$	1,576		$	(5,655	)	$	6,434
Quarter Ended March 31, 2011
Revenue	$	35,399	$	15,535	$	30,355		$	—		$	81,289
Direct operating expenses		20,716		2,861		20,741			—			44,318
Drydock expense		3,070		185		3,269			—			6,524
General and administrative		3,234		674		2,270			5,245			11,423
Depreciation expense		4,786		2,451		7,106			332			14,675
Loss on sale of assets		—		—		10			—			10
Operating income (loss)	$	3,593	$	9,364	$	(3,041	)	$	(5,577	)	$	4,339