Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating activities:
Net income (loss)	$ 63,238	$ (64,842)
(Income) loss from discontinued operations, net of tax provision	235	366
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Non-cash operating items (Note 2)	(68,552)	56,834
Changes in operating assets and liabilities:
Other current assets and other assets	(204)	(472)
Accrued expenses and other current liabilities	(1,099)	(457)
Income taxes receivable and payable	80	(953)
Pension and other postretirement liabilities	(317)	(1,590)
Long-term liabilities	1,036	237
Net cash provided by (used in) operating activities - continuing operations	(5,583)	(10,877)
Net cash provided by (used in) operating activities - discontinued operations	(5,619)	(5,619)
Net cash provided by (used in) operating activities	(11,202)	(16,496)
Investing activities:
Capital expenditures		(35)
Net cash provided by (used in) investing activities - continuing operations		(35)
Receipt of principal, Land Note - discontinued operations		33,667
Net cash provided by (used in) investing activities		33,632
Financing activities:
Excess tax benefit associated with stock-based compensation		683
Net cash provided by (used in) financing activities - continuing operations		683
Net cash provided by (used in) financing activities		683
Increase (decrease) in cash and cash equivalents	(11,202)	17,819
Cash and cash equivalents - beginning of period	58,853	51,433
Cash and cash equivalents - end of period	$ 47,651	$ 69,252