Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net income (loss)	$ 12,522	$ (24,443)	$ 28,898	$ (60,945)
Changes in fair value of derivative, net of tax of $37, $37, $111 and $110	59	59	177	178
Changes in defined benefit pension plans, net of tax of $440, $471, $1,241 and $(740)	706	762	1,988	(1,197)
Other	(7)	0	(21)	84
Total comprehensive income (loss)	$ 13,280	$ (23,622)	$ 31,042	$ (61,880)