CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (152)	$ 20,204	$ 607	$ 2,932
Other comprehensive income (loss), net of tax:
Net actuarial pension loss amortization, net of income tax of $0, $182, $0 and $393	0	286	0	619
Prior service cost (credit) amortization, net of income tax of $150, $151, $301 and $302	(238)	(238)	(476)	(476)
Other comprehensive income (loss), net of tax	(238)	48	(476)	143
Comprehensive income (loss)	$ (390)	$ 20,252	$ 131	$ 3,075