Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Summary of the unaudited quarterly results of operations

The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2013 and 2012:

	Quarter Ended
	March 31		June 30		Sept. 30		Dec. 31
	(In thousands)
2013
Revenue	$	51,351	$	47,544	$	44,410	$	59,569
Operating income	14,587		13,398		6,225		20,620
Net income	1,738		6,368		237		105,338
	Quarter Ended
	March 31		June 30		Sept. 30		Dec. 31
	(In thousands)
2012
Revenue	$	72,547	$	46,028	$	51,556	$	70,327
Operating income	24,974		8,335		8,904		28,939
Net income	14,706		1,270		1,129		19,945