Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Significant Accounting Policies

Schedule of carrying amount of goodwill by reportable segment

Years Ended December 31,	2018		2017
(in thousands)
Technical Services	$	30,992	$	30,992
Support Services		1,158		1,158
Goodwill	$	32,150	$	32,150

Schedule of reconciliation of weighted average shares outstanding

(In thousands except per share data )	2018			2017			2016
Net income (loss) available for stockholders	$	175,402		$	162,511		$	(141,246	)
Less: Adjustments for losses attributable to participating securities		(1,839	)		(2,102	)		(147	)
Net income (loss) used in calculating per share amounts	$	173,563		$	160,409		$	(141,393	)
Weighted average shares outstanding (including participating securities)		215,198			217,194			217,509
Adjustment for participating securities		(2,453	)		(2,891	)		(3,282	)
Shares used in calculating basic and diluted earnings (loss) per share		212,745			214,303			214,227