Quarterly Selected Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	Three Months Ended
Year Ended December 31, 2019	March 31		June 30			September 30		December 31
(In thousands, except per share data)
Revenues	$	555,183	$	570,222		$	619,467	$	549,480
Gross profit	$	86,794	$	88,032		$	93,681	$	23,144
Income (loss) from operations	$	76,779	$	66,570		$	106,481	$	(6,960	)
Reorganization items, net	$	87	$	(16	)	$	—	$	(47	)
Net income (loss)	$	72,741	$	62,840		$	106,769	$	(8,551	)
Diluted income (loss) per common share	$	3.91	$	3.53		$	6.34	$	(0.57	)

	Three Months Ended
Year Ended December 31, 2018	March 31			June 30			September 30			December 31
(In thousands, except per share data)
Revenues	$	575,295		$	592,349		$	633,180		$	650,963
Gross profit	$	81,198		$	77,663		$	109,740		$	101,396
Income from operations	$	65,167		$	44,595		$	82,886		$	86,490
Reorganization items, net	$	(301	)	$	(740	)	$	(560	)	$	(60	)
Net income	$	59,985		$	43,306		$	123,192		$	86,094
Diluted income per common share	$	2.74		$	2.06		$	6.10		$	4.44