CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013
Net earnings (loss)	$ (82,717)	$ 33,439	$ (103,724)		$ (34,509)
Other comprehensive income:
Defined benefit postretirement plans - amortization of actuarial losses, net of tax	174	345	347	[1]	687
Total other comprehensive income	174	345	347		687
Total comprehensive income (loss)	$ (82,543)	$ 33,784	$ (103,377)		$ (33,822)

[1] All amounts are net of tax.