STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income	$ 4,653	$ 434	$ 73,183	$ 68,877
Other comprehensive income (loss), net of tax
Change in pension and postretirement benefit plan liability, net of tax of $49, $0, $98 and $0, respectively	(78)	0	(156)	0
Other comprehensive income (loss), net of tax	(78)	0	(156)	0
Comprehensive income	$ 4,575	$ 434	$ 73,027	$ 68,877